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| All Patents in class 409/37 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,119,298 | May 31, 1938 | A.W. Simowski | Gear Finishing Tool | ||
| 2,167,146 | Jul. 25, 1939 | J.D. Rovick, J.C. Drader | Means for Finishing Gears | ||
| 2,254,240 | Sep. 02, 1941 | E.A. Overstedt | Machine for Finishing Gears | ||
| 2,267,692 | Dec. 23, 1941 | W.F. Dalzen | Method of Cutting and Finishing Gear Teeth | ||
| 2,682,100 | Jun. 29, 1954 | H. Pelphrey | Gear Shaving Cutter | ||
| 2,770,171 | Nov. 13, 1956 | A.D. Moncrieff | Gear Cutting Device | ||