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3380715
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Patent number 3,380,715
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Issue date Apr 30, 1968
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2976565
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Patent number 2,976,565
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Issue date Mar 28, 1961
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2968832
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Patent number 2,968,832
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Issue date Jan 24, 1961
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2959811
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Patent number 2,959,811
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Issue date Nov 15, 1960
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2958094
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Patent number 2,958,094
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Issue date Nov 1, 1960
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2954580
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Patent number 2,954,580
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Issue date Oct 4, 1960
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2941239
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Patent number 2,941,239
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Issue date Jun 21, 1960
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2730755
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Patent number 2,730,755
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Issue date Jan 17, 1956
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2696635
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Patent number 2,696,635
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Issue date Dec 14, 1954
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2663901
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Patent number 2,663,901
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Issue date Dec 29, 1953
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2652590
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Patent number 2,652,590
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Issue date Sep 22, 1953
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2612832
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Patent number 2,612,832
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Issue date Oct 7, 1952
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2602743
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Patent number 2,602,743
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Issue date Jul 8, 1952
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2571760
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Patent number 2,571,760
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Issue date Oct 16, 1951
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2551872
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Patent number 2,551,872
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Issue date May 8, 1951
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2537395
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Patent number 2,537,395
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Issue date Jan 9, 1951
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2478885
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Patent number 2,478,885
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Issue date Aug 9, 1949
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2341651
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Patent number 2,341,651
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Issue date Feb 15, 1944
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2319040
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Patent number 2,319,040
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Issue date May 11, 1943
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2264237
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Patent number 2,264,237
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Issue date Nov 25, 1941
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2097290
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Patent number 2,097,290
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Issue date Oct 26, 1937
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1936490
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Patent number 1,936,490
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Issue date Nov 21, 1933
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent number 961,664
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Issue date Jun 14, 1910
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent number 845,329
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Issue date Feb 26, 1907
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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305474
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Patent number 305,474
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Issue date Sep 23, 1884
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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292906
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Patent number 292,906
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Issue date Feb 5, 1884
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL