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All Patents in class 221/168 | |||||
Number | Date | Patentee | Title | Type | |
1,947,680 | Feb. 20, 1934 | E.B. Stimpson | Rivet setting machine | riveting machines | |
2,078,659 | Apr. 27, 1937 | J. Gualtiere | Rivet feed | riveting machines |