All Patents in class 261/29


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All Patents in class 261/29
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,782,928	Nov. 25, 1930	J.S. Knowlson	Humidifier	air conditioning apparatus
3,512,761	May 19, 1970	J.F. O'Regan, B.A. Lundberg, W.J. Mussoni	Hydraulically-powered foam fire suppression system