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Class Information
Number: 220/747
Name: Receptacles > Container attachment or adjunct > Container vent means > Tortuous path
Description: Subject matter wherein the passageway is in the form of a tortuous or serpentine passage.


Sub-classes under this class:

Class Number Class Name Patents
220/748 Liquid trap 5


Patents under this class:

Patent Number Title Of Patent Date Issued
6698611 Tank cap Mar. 2, 2004
6085664 Vented hatch cover Jul. 11, 2000
6059141 Vehicle underbody storage container May. 9, 2000
5613615 Venting cap for masking Mar. 25, 1997
5445291 Pressurized package for a particulate material employing a venting member Aug. 29, 1995
4981153 Method and apparatus for reducing hydrocarbon vapor emission from a storage tank Jan. 1, 1991
4880140 Filter-separator pour-out cap Nov. 14, 1989
4410100 Breather separator for fluid power system reservoir Oct. 18, 1983



 
 
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