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Hamstra-Weesp B.V.

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Patents Grantslast 30 patents

  • Information Patent Grant

    Roller screen
    • Patent number 6,296,040
    • Issue date Oct 2, 2001
    • Hamstra-Weesp B.V.
    • Henk Schaap
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Roller screen
    • Patent number 5,651,406
    • Issue date Jul 29, 1997
    • Hamstra-Weesp B.V.
    • Henk Schaap
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

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