TREA

Youichirou Haraguchi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing cushion materials
    • Patent number 4,519,862
    • Issue date May 28, 1985
    • Tachikawa Spring Co.
    • Muneharu Urai
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL