All Patents in class 418/206.2


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All Patents in class 418/206.2
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	79,781	Jul. 07, 1868	S.P. Ruggles	Improvement in Rotary Fluid-Elevators
	567,089	Sep. 01, 1896	J.B. Garber	Rotary pump
	2,037,402	Apr. 14, 1936	J.L. Taylor	Blower