All Patents in class 210/769


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All Patents in class 210/769
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,217,397	Feb. 27, 1917	F.P. Boland	Process and means for filtering water
	3,526,589	Sep. 01, 1970	C.L. Swanson, P. Pan, F.H. Meller	Solids Interception System