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Patents for Frank W. Curtis
Patents 1 - 15 of 21
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1,865,617Jul. 05, 1932F.W. CurtisMetal Cutting Toolmilling machine cutters
1,917,504Jul. 11, 1933F.W. CurtisCutter Grindersharpening machines
2,118,967May 31, 1938F.W. CurtisCutter grindertool grinders
2,141,263Dec. 27, 1938F.W. CurtisIndexing Work Holderindexers and dividers
2,230,716Feb. 04, 1941F.W. CurtisTable Drive for Milling Machinesmilling machines
2,281,921May 05, 1942F.W. CurtisTumble Change Gear Mechanismmilling machines
2,289,874Jul. 14, 1942F.W. CurtisMilling Machinemilling machines
2,301,525Nov. 10, 1942F.W. CurtisMilling Machinemilling machines
2,302,744Nov. 24, 1942F.W. CurtisSpindle Control for Machine Toolsmilling machines
2,304,779Dec. 15, 1942F.W. CurtisToolhead Unitmilling machines
2,308,647Jan. 19, 1943F.W. CurtisHydraulic Machine Toolmilling machines
2,309,241Jan. 26, 1943F.W. CurtisDividing Headindexers and dividers
2,325,746Aug. 03, 1943F.W. CurtisMetal Cutting Tool with Inserted Teethmilling machine cutters
2,327,404Aug. 24, 1943F.W. CurtisMilling Machinemilling machines
2,328,061Aug. 31, 1943F.W. CurtisHydraulic Visemilling machine accessories
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