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| All Patents in class 221/182 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,558,079 | Oct. 20, 1925 | E.W. Duston, R.S. Crosby | Feeder for automatic metal-working machines | screw machines | |
| 2,078,660 | Apr. 27, 1937 | J. Gualtiere | Rivet setting machine | riveting machines | |
| 2,761,585 | Sep. 04, 1956 | R.H. Mustonen, I.J. Gruenberg, A.A. Muehling | Apparatus for orienting prismatic bodies | ||