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Patents for David Ackerman
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	213,026	Mar. 11, 1879	D. Ackerman	Wrench For Inserting Bung-Bush
	218,106	Aug. 05, 1879	D. Ackerman	Bung-Bush Wrench

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