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Method of purifying sewage
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Patent number 6,652,756
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Issue date Nov 25, 2003
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Kemira Kemi AB
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Lars Gillberg
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Ejector device
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Patent number 5,535,770
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Issue date Jul 16, 1996
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Evac AB
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Pekka Nurmi
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E03 - WATER SUPPLY SEWERAGE
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Top mounting faucet assembly
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Patent number 5,465,749
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Issue date Nov 14, 1995
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Sterling Plumbing Group, Inc.
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Bruce M. Sauter
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E03 - WATER SUPPLY SEWERAGE
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Vacuum sewer arrangement
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Patent number 5,165,457
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Issue date Nov 24, 1992
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Oy Wartsila AB
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Henry Olin
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E03 - WATER SUPPLY SEWERAGE
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Portable, collapsible commode
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Patent number 5,040,249
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Issue date Aug 20, 1991
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Richard Diaz
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Method for waste collection and storage
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Patent number 4,942,632
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Issue date Jul 24, 1990
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The United States of America as represented by the administrator of the Natio...
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William E. Thornton
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Vacuum sewer arrangement
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Patent number 4,928,326
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Issue date May 29, 1990
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Oy Wartsila AB
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Henry Olin
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E03 - WATER SUPPLY SEWERAGE
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