All Patents in class 209/273


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


Quick search:	Patent number:	Patent Date:

All Patents in class 209/273
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	7,941X	Dec. 31, 1833	S.A. Sweet	Pulp Sifter
	6,902	Nov. 27, 1849	S. Hughes, C. Learned	Improvement in machinery for dressing flour
	2,161,989	Jun. 13, 1939	D.M. Waterous	Screening paper pulp