All Patents in class 51/299


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All Patents in class 51/299
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	25,747	Oct. 11, 1859	T.J. Mayall	Improvement in methods of combining emery with caoutchouc
	1,261,669	Apr. 02, 1918	W.E. Wright	Sawing Apparatus
	2,221,173	Nov. 12, 1940	R.S. Gutsell	Sanding or polishing wheel