| Digest Nr | Subject and Author |
|---|
 |
| 2022.02.11.01 | Unknown 20-note Rod Chime Player Device, from Fred Dahlinger |
| 2020.03.22.05 | Interesting Device, Possibly a Coin Accumulator, from Don Teach |
| 2020.03.18.01 | Interesting Device, Possibly a Coin Accumulator, from Tom Sendall |
| 2020.02.27.02 | Interesting Device, Possibly a Coin Accumulator, from Bruce Clark |
| 2020.02.24.04 | Interesting Device, Possibly a Coin Accumulator, from Tom Sendall |
| 2019.01.01.03 | "V'olin" = "V'Oleon" Self-playing Violin Device, from David Kelzenberg |
| 2019.01.01.02 | "V'olin" = "V'Oleon" Self-playing Violin Device, from John McConnel |
| 2017.10.05.01 | Device to Play Ampico "A" Rolls on "B" Pianos, from Allen Ford |
| 2017.10.02.03 | Device to Play Ampico "A" Rolls on "B" Pianos, from Allen Ford |
| 2017.06.18.04 | Jesse French String Driven Tracker Device, from Bucky Buck |
| 2017.06.12.07 | Simplicity of Auto-Namic Reproducing Device, from Luke Myers |
| 2017.04.21.07 | Device to Play Ampico "A" Rolls on "B" Pianos, from John A. Tuttle |
| 2017.04.18.01 | Device to Play Ampico "A" Rolls on "B" Pianos, from Bob Taylor |
| 2017.03.22.05 | Device to Play Ampico "A" Rolls on "B" Pianos, from Lee Lanier |
| 2017.03.22.04 | Device to Play Ampico "A" Rolls on "B" Pianos, from Bob Taylor |
| 2017.03.04.03 | Device to Play Ampico "A" Rolls on "B" Pianos, from Bob Taylor |
| 2017.01.30.04 | Unknown Player Piano Device, from Skip Downing |
| 2012.12.31.04 | USB MIDI Drivers for Android Device, from Wallace Venable |
| 2012.12.27.09 | Seek USB MIDI Drivers for Android Device, from Steve Greatrex |
| 2012.05.24.07 | Key Lock Device in Upright Player Pianos, from Bernt Damm |
| 2010.09.21.09 | Instrument Tuning Device, from Nicholas Simons |
| 2010.09.20.04 | Seek Instrument Tuning Device, from Ron Schmuck |
| 2010.07.08.04 | Keyboard Lock Device for Foster Player Piano, from Andy Taylor |
| 2010.07.08.03 | Keyboard Lock Device for Foster Player Piano, from Jay Merrill |
| 2010.07.07.03 | Seek Keyboard Lock Device for Foster Player Piano, from Ross Shirer |
| 2010.02.20.03 | Seek Air-O-Player Tracking Device, from Greg Graham |
| 2007.03.17.04 | Seek MIDI Device Programmer, from Rob Goodale |
| 2007.02.22.05 | Wireless Control of MIDI Device, from Bob Meyer |
| 2006.07.18.06 | Ampico A Lost Motion Device, from Bob Hodge |
| 2006.07.18.05 | Ampico A Lost Motion Device, from Bruce Clark |
| 2006.07.18.04 | Ampico A Lost Motion Device, from John Johns |
| 2006.07.17.05 | Ampico A Lost Motion Device, from Robert Vreeland |
| 2006.04.12.10 | Mech. Music Terms: Keyframe Pressure Device, from Nicholas Simons |
| 2006.04.12.09 | Mech. Music Terms: Keyframe Pressure Device, from Ingmar Krause |
| 2006.04.11.11 | Mech. Music Terms: Keyframe Pressure Device, from Hans van Oost |
| 2006.01.28.04 | Electricity Saving Device, from Karl Ellison |
| 2006.01.25.09 | Electricity Saving Device, from Spencer Chase |
| 2006.01.25.08 | Electricity Saving Device, from Steve McCollum |
| 2006.01.24.05 | Electricity Saving Device, from Ray Finch |
| 2006.01.23.04 | Electricity Saving Device, from Bill Chapman |
| 2005.09.05.04 | "Organola" Player Device by E. F. Walcker, from Eberhard Vogel |
| 2004.07.12.18 | Key Lock Device in Upright Player Pianos, from Hal Davis |
| 2004.07.12.17 | Key Lock Device in Upright Player Pianos, from Nicholas Simons |
| 2004.07.12.16 | Key Lock Device in Upright Player Pianos, from Bing Gibbs |
| 2004.07.11.09 | Key Lock Device in Upright Player Pianos, from John A. Tuttle |
| 2004.05.18.05 | Themodist Solo Device, from Douglas Henderson |
| 2003.09.29.02 | Pianotist - Early Piano Player Device, from Gregory Filardo |
| 2003.07.07.03 | Electronic Tuning Device for Musical Box, from Eliyahu Shahar |
| 2003.06.11.15 | Pump Motor Overheat Protection Device, from Spencer Chase |
| 2003.06.05.11 | Piano Tuning By Ear vs. Electronic Tuning Device, from Robbie Rhodes |
| 2003.06.05.10 | Piano Tuning By Ear vs. Electronic Tuning Device, from Bill Mackin |
| 2002.09.09.01 | Roll Scanning Device by Agris-Schoen Vision Systems, from Meta Brown |
| 2002.07.16.09 | Pratt-Read Tracking Device, from James Jelinek |
| 2002.07.15.09 | Pratt-Read Tracking Device, from Tim Baxter |
| 2002.07.13.03 | Pratt-Read Tracking Device, from John Rutoskey |
| 2001.09.11.01 | The V'Oleon Self-playing Violin Device, from Bob Loesch |
| 2001.08.13.04 | Lauter Built-In Tracker Bar Cleaning Device, from John A. Tuttle |
| 2001.08.12.04 | Lauter Built-In Tracker Bar Cleaning Device, from Paul Manganaro |
| 2001.08.10.08 | Lauter Tubing Diagram and Tracker Device, from John A. Tuttle |
| 2001.06.13.03 | Seek Device for Editing Music Rolls, from John McClure |
| 2001.05.30.05 | Early Duo-Art Theme Box and Tracking Device, from Barry Dennis |
| 2001.05.29.08 | Early Duo-Art Theme Box and Tracking Device, from Sam Harris |
| 2001.05.28.06 | Early Duo-Art Theme Box and Tracking Device, from Barry Dennis |
| 2001.02.07.02 | Seek Piano Player Device, from L. Carthon |
| 2000.09.03.10 | Seek Wurlitzer Mandolin Device, from Bill Masterman |
| 2000.07.20.09 | String-Winding Music Roll Tracking Device, from Horacio Asborno |
| 1999.09.14.03 | Help Identify Photo of Player Device, from Andy Taylor |
| 1999.09.14.02 | Help Identify Photo of Player Device, from Philip Jamison |
| 1999.09.13.02 | Help Identify Photo of Player Device, from Larry Lobel |
| 1999.03.17.15 | Sostenuto Device by Walter Mudgett, from Charles Davis |
| 1998.12.15.15 | Rewind-Repeat Device on Stoddard Ampico, from Dick Merchant |
| 1998.12.13.14 | Rewind-Repeat Device on Stoddard Ampico, from Mike Kitner |
| 1998.12.11.15 | Song-Repeating Device on Player Piano, from Hal Davis |
| 1998.08.26.17 | Device For Softening a Duo-Art, from Spencer Chase |
| 1998.08.24.10 | Device For Softening a Duo-Art, from Thomas Henden |
| 1998.05.08.16 | Alpine Ozone Treatment Device, from Gregory Przyjemski |
| 1998.04.16.18 | Seek MIDI Output Driver Device, from Galen Bird |
| 1997.10.01.13 | My Tracking Device Experiment ("fffft fffft"), from John Rutoskey |
| 1997.09.10.10 | Ampico B Roll Tensioning Device, from Dick Merchant |
| 1997.09.03.09 | Roll-Tracking Device, from Dan Wilson |
| 1997.08.03.09 | The RAM Roll Reading Device, from Craig Brougher |
| 1997.08.01.14 | Tracker Bar Valve Interface Device, from Gary Rasmussen |
| 1997.07.30.15 | Tracker Bar Device, from Bob Ricco |
| 1996.10.28.10 | Paper Roll Perforators - MIDI Converter Device, from John Wale |
| 1996.09.10.17 | Stoddard Ampico "Soft" Device, from Robbie Rhodes |
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