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Andrew J. Apps

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  • Derby, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of producing porous rubber sheeting
    • Patent number 4,152,384
    • Issue date May 1, 1979
    • 4D Research and Development Company Limited
    • Andrew J. Apps
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL