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Patents for Harry W. Ruppel
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
2,300,389Oct. 27, 1942H.W. RuppelCoolant control and lock for spindle turrets
2,310,259Feb. 09, 1943H.W. RuppelStock feed for automatic screw machines
2,348,364May 09, 1944H.W. RuppelTurret actuating mechanism
2,357,428Sep. 05, 1944H.W. RuppelAutomatic screw machine
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