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All Patents in class 141/311R
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	1,459,662	Jun. 19, 1923	C.W. Manzel	Lubricating System
	1,475,980	Dec. 04, 1923	O. Zerk	Lubricating Apparatus
	1,620,824	Mar. 15, 1927	C.W. Manzel	Lubricating Gun
	2,840,122	Jun. 24, 1958	D.L. Billian, R.V. Klikunas	Locomotive tank filling nozzle

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