All Patents in class 451/277


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

All Patents in class 451/277
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
441,570	Nov. 25, 1890	R.B. Leighton	Lens Grinding Machine	material grinding machines
2,352,146	Jun. 20, 1944	J. Desenberg	Grinding and Polishing Machine	polishing and buffing machinery