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Patents for P. Lowentraut Manufacturing Co.
Patents 1 - 8 of 8
First set of recordsLast set of records
198,685Dec. 25, 1877S.E. RobinsonImprovement in wrenchesbrace wrenches
226,490Apr. 13, 1880J.W. CalefWrenchself-adjust wrenches
273,461Mar. 06, 1883J.W. CalefImproved Self-Adjusting Wrenchself-adjust wrenches
296,540Apr. 08, 1884D.M. De SilvaEUREKA ALLIGATOR PIPE TONG OR WRENCHpipe wrenches
CA-20,659Nov. 29, 1884D.M. De SilvaWrenchalligator wrenches
530,419Dec. 04, 1894S.J. JohnstonCombination toolbrace wrenches
601,302Mar. 29, 1898S.J. JohnstonCombination-toolbrace wrenches
674,735May 21, 1901S.J. JohnstonCombination tool (brace wrench)brace wrenches
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