All Patents in class 209/552


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All Patents in class 209/552
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	3,621,998	Nov. 23, 1971	V. Prochaska	Sheet grader
	5,161,697	Nov. 10, 1992	B.S. Quick	Apparatus for selecting wood stock to form panels of predetermined size