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| All Patents in class 82/901 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,254,240 | Sep. 02, 1941 | E.A. Overstedt | Machine for Finishing Gears | gear making machines | |
| 2,268,200 | Dec. 30, 1941 | W.F. Groene | Crank Shaft Lathe | crankshaft lathes | |
| 2,434,750 | Jan. 20, 1948 | J.B. Armitage, T. Trecker, F.D. Boehmer, K.A. Riedel, O.W. Barker | Machine Tool | milling machines | |
| 2,457,469 | Dec. 28, 1948 | L.A. Hillman | Chip Breaker | insert tool holders | |
| 2,690,692 | Oct. 05, 1954 | R.W. Brown | Lathe With Chip-Breaking Mechanism | automatic lathes | |