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All Patents in class 198/550.1
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,092,248	Sep. 07, 1937	B.M. Guthrie	Material Conveying Device
	2,807,832	Oct. 01, 1957	B.H. Davis	Stock feed control for extrusion apparatus

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