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Dual-belt cooling system
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Patent number 4,004,870
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Issue date Jan 25, 1977
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Sandco Ltd.
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Manfred Guttinger
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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3609805
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Patent number 3,609,805
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Issue date Oct 5, 1971
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3591897
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Patent number 3,591,897
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Issue date Jul 13, 1971
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3414649
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Patent number 3,414,649
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Issue date Dec 3, 1968
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3116787
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Patent number 3,116,787
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Issue date Jan 7, 1964
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3084389
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Patent number 3,084,389
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Issue date Apr 9, 1963
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3071967
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Patent number 3,071,967
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Issue date Jan 8, 1963
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C03 - GLASS MINERAL OR SLAG WOOL
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3057166
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Patent number 3,057,166
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Issue date Oct 9, 1962
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3032850
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Patent number 3,032,850
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Issue date May 8, 1962
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E04 - BUILDING
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2893102
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Patent number 2,893,102
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Issue date Jul 7, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2645049
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Patent number 2,645,049
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Issue date Jul 14, 1953
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B44 - DECORATIVE ARTS
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1641049
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Patent number 1,641,049
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Issue date Aug 30, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1623612
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Patent number 1,623,612
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Issue date Apr 5, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1623631
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Patent number 1,623,631
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Issue date Apr 5, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1528183
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Patent number 1,528,183
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Issue date Mar 3, 1925
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B28 - WORKING CEMENT, CLAY, OR STONE
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1463961
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Patent number 1,463,961
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Issue date Aug 7, 1923
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1458198
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Patent number 1,458,198
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Issue date Jun 12, 1923
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B28 - WORKING CEMENT, CLAY, OR STONE
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1327721
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Patent number 1,327,721
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Issue date Jan 13, 1920
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B28 - WORKING CEMENT, CLAY, OR STONE
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1315916
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Patent number 1,315,916
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Issue date Sep 9, 1919
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1063234
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Patent number 1,063,234
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Issue date Jun 3, 1913
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B28 - WORKING CEMENT, CLAY, OR STONE
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938896
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Patent number 938,896
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Issue date Nov 2, 1909
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B28 - WORKING CEMENT, CLAY, OR STONE
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878308
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Patent number 878,308
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Issue date Feb 4, 1908
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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856519
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Patent number 856,519
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Issue date Jun 11, 1907
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B44 - DECORATIVE ARTS
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814382
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Patent number 814,382
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Issue date Mar 6, 1906
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B28 - WORKING CEMENT, CLAY, OR STONE