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All Patents in class 417/424.1
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,801,103	Apr. 14, 1931	E.S. Mummert	Sump-drain pump
1,964,034	Jun. 26, 1934	R.V. Cook	Pumping System	pumps
6,315,530	Nov. 13, 2001	K.E. Wasch, D.J. Goodnick	Submerged Pump Having a Shaft Isolator	rotary pumps

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