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All Patents in class 29/888.44
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,709,807	Apr. 16, 1929	T.S. Purnis	Liner for valve seats
	1,783,884	Dec. 02, 1930	C.C. Lee	Valve-seat liner
	2,017,154	Oct. 15, 1935	E.T. Larkin	Valve Seat Construction for Engines and the Like

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