All Patents in class 280/3


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All Patents in class 280/3
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	5,442X	Apr. 09, 1829	E. Bowen	Machine for Removing Heavy Buildings
	1,674,813	Jun. 26, 1928	I.A. Weaver, G.E. Weaver	Propelling jack