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All Patents in class 318/38 | |||||
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Picture | Number | Date | Patentee | Title | |
1,232,050 | Jul. 03, 1917 | F. Kraemer | Pressure Riveter | ||
![]() | 2,660,932 | Dec. 01, 1953 | N.D. Cooper, H.C. Kemper | Automatic cycle machine tool |