All Patents in class 55/447


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All Patents in class 55/447
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,001,121	May 14, 1935	A.A. Breuer	Portable suction cleaner
	2,990,032	Jun. 27, 1961	R.L. Sandvig	Separator for use with rock drills