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All Patents of Type: gear cutting tools | |||||
Number | Date | Patentee | Title | Type | |
17,522 | Jun. 09, 1857 | G.C. Schneider | Hob for Cutting Screw-Chasers | gear cutting tools | |
136,101 | Feb. 18, 1873 | W. Sellers | Improvement in machines for forming cutters for cutting the teeth of wheels | gear cutting tools |