Dirk A. Ploeg

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Papendrecht, NL

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Patents Grantslast 30 patents

Information Patent Grant
Operating mechanism for a blind or shielding device
- Patent number 5,390,721
- Issue date Feb 21, 1995
- Hunter Douglas International N.V.
- Herman Oskam
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS