All Patents in class 492/42


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All Patents in class 492/42
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	459,325	Sep. 08, 1891	B.D. Whitney	Feed-roller
	2,280,620	Apr. 21, 1942	F.J. Theler, G.W. Binns	Apparatus for Finishing Tubular Articles
	2,377,880	Jun. 12, 1945	R.S. Gutsell	Centrifugal abrasive-sheet holding wheel