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Class Information
Number: 4/255.12
Name: Baths, closets, sinks, and spittoons > Obstruction remover > Force cup (e.g., a plunger) > With one way valve
Description: Subject matter wherein the force cup has a device that will make the fluid flow in one direction to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.










Patents under this class:

Patent Number Title Of Patent Date Issued
8684022 Condensate drain clearing device and method Apr. 1, 2014
6684417 Vented toilet plunger Feb. 3, 2004
6393626 Dual-acting plunger May. 28, 2002
6247190 Plunger apparatus with controllable ventilation Jun. 19, 2001
5974596 High pressure plunger device Nov. 2, 1999
4768237 Toilet plunger Sep. 6, 1988
4622702 Drain plunger Nov. 18, 1986
4566139 Piston plunger Jan. 28, 1986











 
 
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