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Patents for Henry D. Dann
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	134,653	Jan. 07, 1873	H.D. Dann	Improvement in sawmill-dogs
	RE6,071	Sep. 29, 1874	H.D. Dann	Improvement in sawmill dogs
	RE6,733	Nov. 09, 1875	H.D. Dann	Improvement in saw-mill dogs

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