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Method of making sealed wire rope
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Patent number 4,197,695
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Issue date Apr 15, 1980
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Bethlehem Steel Corporation
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Charles R. Hughes
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D07 - ROPES CABLES OTHER THAN ELECTRIC
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3800522
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Patent number 3,800,522
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Issue date Apr 2, 1974
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D07 - ROPES CABLES OTHER THAN ELECTRIC
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3646748
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Patent number 3,646,748
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Issue date Mar 7, 1972
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL