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All Patents in class 221/263 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,667,397 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | |
![]() | 1,667,398 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | |
![]() | 1,667,399 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | |
![]() | 1,667,400 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism |