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All Patents in class 221/263 | |||||
Number | Date | Patentee | Title | Type | |
1,667,397 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | riveting machines | |
1,667,398 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | riveting machines | |
1,667,399 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | riveting machines | |
1,667,400 | Apr. 24, 1928 | E.B. Stimpson | Rivet-feeding mechanism | riveting machines |