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Patents for Walter L. Diffenderfer | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 3,654,686 | Apr. 11, 1972 | W.L. Diffenderfer, F.R. McFarland | Clamping Tool | |
![]() | 3,660,905 | May 09, 1972 | W.L. Diffenderfer, F.R. McFarland | Disc Brake Lining Thickness Gauge |