| 摘要 |
474,443. Gear-cutting. NATIONAL BROACH &. MACHINE CO. Jan. 25, 1936, No. 26155/37. Void. Convention date, Jan. 26, 1935. Divided out of 474,227. Drawings to Specification. [Class 83 (iii)] Milling cutters.-A rotary cutter of the intermeshing type for finishing gears has one or more grooves provided in the sides of the teeth and has longitudinal channels formed at the roots of the teeth. The embodiments shown are described in Specification 415,875.
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