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| All Patents in class 192/138 | |||||
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| Number | Date | Patentee | Title | Type | |
| 679,748 | Aug. 06, 1901 | J.E. Hillstrom | Saw-filing machine | tool making machines | |
| 1,670,648 | May 22, 1928 | O.S. Beyer | Automatic punching press | punch presses | |
| 1,928,711 | Oct. 03, 1933 | H.C. Walsh | Power press | punch presses | |
| 2,029,094 | Jan. 28, 1936 | N.S. Lundberg, C.B. De Vilieg | Power Transmission Mechanism | ||
| 2,086,851 | Jul. 13, 1937 | E.P. Bullard, III | Machine Controller | ||