TREA

Showa Orifa Co., Ltd.

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat insulating shutter device
    • Patent number 5,365,990
    • Issue date Nov 22, 1994
    • Showa Orifa Co., Ltd.
    • Kenji Ueda
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS