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Fixtures for trapping condensation
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Patent number 7,428,909
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Issue date Sep 30, 2008
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Lasco Fittings, Inc.
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Donald J. Klein
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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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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Floor drain and trap
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Patent number 4,922,948
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Issue date May 8, 1990
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Willem Van Dijk
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E03 - WATER SUPPLY SEWERAGE
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Liquid seal vent
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Patent number 4,773,441
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Issue date Sep 27, 1988
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Pavel Biba
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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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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2844213
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Patent number 2,844,213
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Issue date Jul 22, 1958
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2582031
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Patent number 2,582,031
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Issue date Jan 8, 1952
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2525807
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Patent number 2,525,807
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Issue date Oct 17, 1950
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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2395320
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Patent number 2,395,320
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Issue date Feb 19, 1946
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B61 - RAILWAYS
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2210179
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Patent number 2,210,179
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Issue date Aug 6, 1940
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2201998
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Patent number 2,201,998
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Issue date May 28, 1940
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2153373
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Patent number 2,153,373
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Issue date Apr 4, 1939
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2089231
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Patent number 2,089,231
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Issue date Aug 10, 1937
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2060420
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Patent number 2,060,420
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Issue date Nov 10, 1936
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1917344
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Patent number 1,917,344
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Issue date Jul 11, 1933
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1727688
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Patent number 1,727,688
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Issue date Sep 10, 1929
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B61 - RAILWAYS
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1681242
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Patent number 1,681,242
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Issue date Aug 21, 1928
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1666937
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Patent number 1,666,937
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Issue date Apr 24, 1928
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1625561
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Patent number 1,625,561
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Issue date Apr 19, 1927
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E03 - WATER SUPPLY SEWERAGE
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1604772
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Patent number 1,604,772
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Issue date Oct 26, 1926
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1596997
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Patent number 1,596,997
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Issue date Aug 24, 1926
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E03 - WATER SUPPLY SEWERAGE
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1566052
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Patent number 1,566,052
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Issue date Dec 15, 1925
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E03 - WATER SUPPLY SEWERAGE
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1526637
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Patent number 1,526,637
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Issue date Feb 17, 1925
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E03 - WATER SUPPLY SEWERAGE
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1507531
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Patent number 1,507,531
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Issue date Sep 2, 1924
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E03 - WATER SUPPLY SEWERAGE
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1502184
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Patent number 1,502,184
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Issue date Jul 22, 1924
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B61 - RAILWAYS
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1469790
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Patent number 1,469,790
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Issue date Oct 9, 1923
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E03 - WATER SUPPLY SEWERAGE