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Patents for Howard J. Bierman
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,138,996	May 11, 1915	G.T. Strite, F.H. Bierman	Traction-engine
	1,194,569	Aug. 15, 1916	G.T. Strite, F.H. Bierman	Drive-gearing for traction-engines

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