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All Patents in class 409/59 | |||||
Number | Date | Patentee | Title | Type | |
401,987 | Apr. 23, 1889 | J.S. Waterman | Machine for Cutting Gears | gear making machines | |
2,270,741 | Jan. 20, 1942 | J.D. Rovick | Machine and Tool for Finishing Gears | gear making machines | |
2,880,652 | Apr. 07, 1959 | B. Welte | Ring Gear Broaching Machine | broaching machines |