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All Patents in class 235
Patents 151 - 165 of 229
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NumberDatePatenteeTitleType
1,686,383Oct. 02, 1928D.C. KlausmeyerCam Controlled Twenty-Four Speed Mechanismmetalworking speed changing mechanisms
1,709,233Apr. 16, 1929O.C. SchroederMechanical movementmetal lathe accessories and attachments
1,718,052Jun. 18, 1929W.C. LineaweaverMeasuring Devicemeasurement gauges
1,730,852Oct. 08, 1929W. JennyAngle and Hypotenuse Measuring Instrumentprotractors
1,764,515Jun. 17, 1930D.C. KlausmeyerDirect Reading Gear Shift Mechanismmetalworking speed changing mechanisms
1,858,390May 17, 1932R.R. Finn, E.T. ByssheTorsion Released Dietaps and dies
1,859,897May 24, 1932O.J. SundstrandSubtraction key latch
1,896,527Feb. 07, 1933C.R. HoughtonTandem metergas meters
1,925,735Sep. 05, 1933O.J. SundstrandMotor driven actuating mechanism for computing machines
1,934,232Nov. 07, 1933A.W. KeuffelSlide ruleslide rules
1,938,785Dec. 12, 1933B. SassenTransmission Mechanismmetalworking power transmission
1,963,095Jun. 19, 1934E.S. Hineline, W.H. PetitAutomatic Film Cameracameras
1,963,096Jun. 19, 1934E.S. Hineline, W.H. PetitPhotographic Film Striproll film
1,963,312Jun. 19, 1934E.S. Hineline, W.H. PetitMethod of and Apparatus for Making Photographic Records of Meter and Like Readingscameras
1,977,453Oct. 16, 1934E.S. Hineline, W.H. PetitMeans and Method for Photographing a Large Surface with Short Focus Lensescameras
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