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Class Information
Number: 55/DIG.6
Name: Gas separation > Magnetic couplings

Patents under this class:

Patent Number Title Of Patent Date Issued
8388717 Furnace filter adapters and braces Mar. 5, 2013
8323387 Air filtering assembly Dec. 4, 2012
5958114 Indoor unit of air-conditioner Sep. 28, 1999
5824126 Soot filtering cap in a range hood Oct. 20, 1998
5776216 Vacuum pump filter for use in a semiconductor system Jul. 7, 1998
5702493 Welding fume funnel with magnetic coupling means Dec. 30, 1997
5679121 Air filter attachment apparatus of air conditioner Oct. 21, 1997
5107580 Method of attaching sheet filter to inlet opening of ventilation fan or range hood Apr. 28, 1992
4961849 Magnetically attached filter Oct. 9, 1990
4724749 Clean room ceiling grid system Feb. 16, 1988
4470834 Air filter Sep. 11, 1984
4468321 Filter device with magnetic filter clamp Aug. 28, 1984

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