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Patents for J. H. Millett
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
145,726Dec. 23, 1873G.H. CrosbyImprovement in pressure-gagessteam pressure gauges
179,276Jun. 27, 1876G.H. CrosbyImprovement in Pipe Dogs or Wrenchespipe wrenches
476,512Jun. 07, 1892C.B. BosworthDevice for testing pressure-gaugessteam pressure gauges
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