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Patents Granted on 1930-08-12
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,772,461Aug. 12, 1930C.B. JahnkeLubrication Meansinternal combustion engine lubrication
1,772,514Aug. 12, 1930J. HoogerhydeFour-way blocking clampclamps
1,772,524Aug. 12, 1930W.A. SeidemannRatchet Wrenchratchet wrenches
1,772,544Aug. 12, 1930L.R. HeimTruing Device for Abrasive Wheels Used in Producing Ground Articlesgrinding machines
1,772,599Aug. 12, 1930J.E. DobsonPress for forging or shaping metalforging presses
1,772,655Aug. 12, 1930J.H. YeagerDynamo-electric machineelectric motors
1,772,723Aug. 12, 1930W.F. KleinMethod Of Making Socket Wrencheswrench sockets
1,772,932Aug. 12, 1930S. EinsteinGrinding Machinerygrinding machines
1,772,964Aug. 12, 1930R.F. ShunkHandle switch constructionvacuum cleaners
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