TREA

Andre de Neergaard

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  • Tournon, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bolt for an anchoring hole with an undercut
    • Patent number 4,971,494
    • Issue date Nov 20, 1990
    • Societe de Prospection et d'Inventions Techniques (S.P.I.T.)
    • Alain Gauthier
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...