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3051985
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Patent number 3,051,985
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Issue date Sep 4, 1962
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2940350
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Patent number 2,940,350
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Issue date Jun 14, 1960
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2436446
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Patent number 2,436,446
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Issue date Feb 24, 1948
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2034641
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Patent number 2,034,641
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Issue date Mar 17, 1936
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1798806
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Patent number 1,798,806
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Issue date Mar 31, 1931
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Issue date Dec 6, 1927
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1637784
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Patent number 1,637,784
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Issue date Aug 2, 1927
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1514647
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Patent number 1,514,647
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Issue date Nov 11, 1924
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent number 1,405,383
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Issue date Feb 7, 1922
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent number 1,402,160
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1381242
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Issue date Jun 14, 1921
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1290097
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Patent number 1,290,097
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Issue date Jan 7, 1919
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1289485
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Patent number 1,289,485
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Issue date Dec 31, 1918
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1255098
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Patent number 1,255,098
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1245190
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Patent number 1,245,190
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Issue date Nov 6, 1917
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL