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All Patents in class 222/250
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	700,644	May 20, 1902	J. Hartness	Fluid Regulating Device
	700,645	May 20, 1902	J. Hartness	Fluid Regulating Device
	703,410	Jul. 01, 1902	J. Hartness	Fluid Regulating Device
	920,769	May 04, 1909	C.W. Manzel	Lubricator
	1,841,526	Jan. 19, 1932	R.E. Flanders	Metering Device

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