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Patents for Rickert-Shafer Co.
Patents 1 - 15 of 15
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,119,676Dec. 01, 1914R.A. BoehmThreading-die holdertap and die holders
1,153,310Sep. 14, 1915J.E. JohnsonDrive for machine-toolstapping machines
1,153,311Sep. 14, 1915J.E. JohnsonTapping-machinetapping machines
1,172,558Feb. 22, 1916A.A. RickertIce Cutter ice shaves
1,244,084Oct. 23, 1917A.A. ShaferTapping Machine tapping machines
1,345,709Jul. 06, 1920A.A. ShaferThreading Die Mechanism tap and die holders
1,345,710Jul. 06, 1920A.A. ShaferCollapsible Tap taps and dies
1,345,744Jul. 06, 1920R.A. BoehmCollapsible Tap taps and dies
1,415,013May 09, 1922R.A. BoehmCollapsible Tap taps and dies
1,470,683Oct. 16, 1923R.A. BoehmScrew Cutting Machine screw machines
1,560,462Nov. 03, 1925R.A. BoehmSelf Opening and Closing Threading Die Holder tap and die holders
1,560,487Nov. 03, 1925A.A. ShaferAutomatic Screw Threading Machine metal threading machines
1,936,274Nov. 21, 1933G.E. ShaferDie taps and dies
1,978,059Oct. 23, 1934A.A. RickertCutting Off Machine cutting-off and centering machines
1,978,060Oct. 23, 1934A.A. RickertWork Feeding Device workpiece changers and storage mechanisms
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