All Patents in class 73/796


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All Patents in class 73/796
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	278,917	Jun. 05, 1883	A.H. Emery	Machine for testing the strength of materials
	278,918	Jun. 05, 1883	A.H. Emery	Machinery for testing the strength of metal
	552,873	Jan. 07, 1896	C.G. Barth, J.S. Bancroft, W. Sellers	Testing Machine