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Passive pressure activation valve
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Patent number 7,543,601
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Issue date Jun 9, 2009
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Continental Automotive Canada, Inc.
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Gilles Delaire
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Passive pressure activation valve
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Patent number 7,490,624
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Issue date Feb 17, 2009
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Continental Automotive Canada, Inc.
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Gilles Delaire
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Water trap
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Patent number 6,662,387
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Issue date Dec 16, 2003
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Duncan P. Winzar
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Sewerage inlet
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Patent number 6,192,915
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Issue date Feb 27, 2001
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Antonius Valperz
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E03 - WATER SUPPLY SEWERAGE
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Liquid filling device
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Patent number 6,164,309
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Issue date Dec 26, 2000
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Trojan Battery Company
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William B. Brecht
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Drain trap
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Patent number 5,916,436
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Issue date Jun 29, 1999
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BASF Corporation
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James Melvin Devore
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E03 - WATER SUPPLY SEWERAGE
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Sink-trap
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Patent number 5,203,369
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Issue date Apr 20, 1993
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Jin-Chyuan Hwang
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E03 - WATER SUPPLY SEWERAGE
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Sewer fluid trap
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Patent number 4,432,384
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Issue date Feb 21, 1984
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Marcel Guiboro
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E03 - WATER SUPPLY SEWERAGE
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Dental waste trap
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Patent number 4,263,934
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Issue date Apr 28, 1981
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Lynn M. Redden
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Basement sewer trap
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Patent number 4,045,346
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Issue date Aug 30, 1977
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Henry S. Swaskey
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E03 - WATER SUPPLY SEWERAGE
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Waterseal
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Patent number 4,026,317
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Issue date May 31, 1977
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Lars Ekstrom
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E03 - WATER SUPPLY SEWERAGE
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3651826
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Patent number 3,651,826
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Issue date Mar 28, 1972
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E03 - WATER SUPPLY SEWERAGE
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2113721
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Patent number 2,113,721
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Issue date Apr 12, 1938
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E03 - WATER SUPPLY SEWERAGE
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2074462
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Patent number 2,074,462
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Issue date Mar 23, 1937
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E03 - WATER SUPPLY SEWERAGE
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2033064
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Patent number 2,033,064
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Issue date Mar 3, 1936
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E03 - WATER SUPPLY SEWERAGE
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1686415
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Patent number 1,686,415
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Issue date Oct 2, 1928
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E03 - WATER SUPPLY SEWERAGE
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1681117
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Patent number 1,681,117
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Issue date Aug 14, 1928
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E03 - WATER SUPPLY SEWERAGE
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1649182
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Patent number 1,649,182
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Issue date Nov 15, 1927
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1643315
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Patent number 1,643,315
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Issue date Sep 27, 1927
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1363535
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Patent number 1,363,535
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Issue date Dec 28, 1920
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E03 - WATER SUPPLY SEWERAGE
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1230179
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Patent number 1,230,179
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Issue date Jun 19, 1917
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E03 - WATER SUPPLY SEWERAGE
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1228034
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Patent number 1,228,034
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Issue date May 29, 1917
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E03 - WATER SUPPLY SEWERAGE
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1175836
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Patent number 1,175,836
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Issue date Mar 14, 1916
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E03 - WATER SUPPLY SEWERAGE
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1035366
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Patent number 1,035,366
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Issue date Aug 13, 1912
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E03 - WATER SUPPLY SEWERAGE
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1002792
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Patent number 1,002,792
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Issue date Sep 5, 1911
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E03 - WATER SUPPLY SEWERAGE
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988369
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Patent number 988,369
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Issue date Apr 4, 1911
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E03 - WATER SUPPLY SEWERAGE