TREA

Tor-Arvid Haugland

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  • Rykkinn, NO
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Patents Grantslast 30 patents

  • Information Patent Grant

    Acoustic source assembly
    • Patent number 5,652,735
    • Issue date Jul 29, 1997
    • Petroleum Geo Services AS
    • Svein Egil Johansen
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS