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2630414
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Patent number 2,630,414
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Issue date Mar 3, 1953
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C07 - ORGANIC CHEMISTRY
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2623039
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Patent number 2,623,039
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Issue date Dec 23, 1952
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2610159
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Patent number 2,610,159
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Issue date Sep 9, 1952
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2541440
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Patent number 2,541,440
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Issue date Feb 13, 1951
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2525792
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Patent number 2,525,792
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Issue date Oct 17, 1950
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C07 - ORGANIC CHEMISTRY
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2500453
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Patent number 2,500,453
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Issue date Mar 14, 1950
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2427503
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Patent number 2,427,503
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Issue date Sep 16, 1947
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2427504
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Patent number 2,427,504
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Issue date Sep 16, 1947
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2392084
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Patent number 2,392,084
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Issue date Jan 1, 1946
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2375978
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Patent number 2,375,978
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Issue date May 15, 1945
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...