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1516543
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Information
Patent Grant
1516543
References
Source
Patent Number
1,516,543
Date Filed
Not available
Date Issued
Tuesday, November 25, 1924
99 years ago
CPC
B23B51/0072 - Drills for making non-circular holes
Y10T407/12 - Freely movable cutting edge
Y10T409/304424 - Means for internal milling
US Classifications
409 - Gear cutting, milling, or planing
407 - Cutters, for shaping
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