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Patents for George H. Crosby
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	145,726	Dec. 23, 1873	G.H. Crosby	Improvement in pressure-gages
	179,276	Jun. 27, 1876	G.H. Crosby	Improvement in Pipe Dogs or Wrenches

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