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Patents for H. A. Spangler
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
RE5,646	Nov. 04, 1873	L. Morrison, A.G. Harms	Improvement in saw-hangings	reciprocating sawmills
RE5,647	Nov. 04, 1873	L. Morrison, A.G. Harms	Improvement in saw-hangings	reciprocating sawmills

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