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Jacketing steel objects
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Patent number 4,786,339
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Issue date Nov 22, 1988
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Mannesmann AG
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Walter Meyer
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method of jacketing steel pipes
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Patent number 4,510,007
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Issue date Apr 9, 1985
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Mannesmann AG
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Walter Stucke
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Twin-nozzle extrusion head
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Patent number 4,484,877
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Issue date Nov 27, 1984
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Mannesmann AG
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Walter Stucke
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Jacketing steel tubes and pipes
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Patent number 4,451,413
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Issue date May 29, 1984
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Mannesmann AG
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Walter Stucke
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Apparatus for the jacketing of steel pipes
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Patent number 4,386,996
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Issue date Jun 7, 1983
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Mannesmann Aktiengesellschaft
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Helmut Landgraf
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL