All Patents in class 417/569


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All Patents in class 417/569
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	2,895	Dec. 31, 1842	W. Douglas, B. Douglas	Pump
	23,649	Apr. 12, 1859	W. Douglas, B. Douglas	Pump
	104,855	Jun. 28, 1870	H.K. Kenyon	Improvement in deep-well pumps
	2,444,159	Jun. 29, 1948	L.E. Godfriaux	Fluid Pump