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All Patents in class 172/329
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	4,974X	Jan. 26, 1828	W. Wiard	Plough
	8,293X	Jul. 08, 1834	J. Jacobs	Plough
	8,417X	Sep. 22, 1834	J.D. Egbert	Forcing pump

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