| Digest Nr | Subject and Author |
|---|
 |
| 2023.07.03.01 | Seek Ampico Pump Flap Valve Restricting Wires, from Mike Walter |
| 2022.03.21.03 | Seek Ampico Pump Flap Valves, from Bill Chapman |
| 2015.08.29.04 | Flap Valve Leather for Duo-Art Exhausters, from Daniel Bussell |
| 2013.06.14.05 | Ampico Flap Valve Material, from Jon Page |
| 2013.05.27.04 | Ampico Flap Valve Material, from Eliyahu Shahar |
| 2013.05.26.07 | Ampico Flap Valve Material, from Jon Page |
| 2009.03.07.06 | Seek Ampico Flap Valve Spring Clips, from Stephen Kent Goodman |
| 2003.05.15.17 | Unusual Exhauster Flap Valves, from Sam Harris |
| 2003.05.12.07 | Unusual Flap Valves, from Nicholas Simons |
| 2003.05.11.09 | Unusual Exhauster Flap Valves, from Dave Clark |
| 2000.05.18.08 | Exhauster Flap Valves - Thanks, from Julian Brook |
| 2000.05.16.07 | Exhauster Flap Valves, from Richard Vance |
| 2000.05.15.07 | Exhauster Flap Valves, from Julian Brook |
| 1999.10.11.08 | Schaff Flap Valve Leather, from Damon Atchison |
| 1999.02.17.06 | Flap Valves for Exhausters, from Don Teach |
| 1999.02.16.08 | Source of Leather for Flap Valves, from Douglas K. Rhodes |
| 1998.06.21.11 | Exhauster Pump Flap Valves, from Bryan Cather |
|
