| Digest Nr | Subject and Author |
|---|
 |
| 2020.12.26.02 | Wind Motor Pneumatic Cloth Width, from Jon Page |
| 2019.06.29.01 | Unknown Book Music 16" (406 mm) Width, from Mikey Mills |
| 2015.09.17.01 | Unknown Orchestrion Rolls 350 mm Width, from Philip Jamison |
| 2003.12.07.07 | Repairing Piano Roll of Varying Width, from Joyce Brite |
| 2002.11.23.13 | Telektra Pulse Width Modulation, from Bob Billings |
| 2002.11.22.14 | Telektra Used Pulse Width Modulation, from Richard Stibbons |
| 2001.02.17.06 | Pianocorder Pulse Width Modulation System, from Bob Baker |
| 1997.06.20.09 | Band Width, from Robbie Rhodes |
|
