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Prinssen en Bus Raadgevende Ingenieurs V.O.F.

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  • Information Patent Grant

    Electro-acoustic system
    • Patent number 5,119,428
    • Issue date Jun 2, 1992
    • Prinssen en Bus Raadgevende Ingenieurs V.O.F.
    • Willem C. J. M. Prinssen
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS