TREA

Michel G. Guillard

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  • Villejuif, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Railway track circuit
    • Patent number 4,467,430
    • Issue date Aug 21, 1984
    • Compagnie de Signaux et d'Entreprises Electriques
    • Andre Even
    • B61 - RAILWAYS
  • Information Patent Grant

    Safety coding process for track circuits
    • Patent number 4,349,170
    • Issue date Sep 14, 1982
    • Compagnie de Signaux et d'Entreprises Electriques
    • Claude D. Bilet
    • B61 - RAILWAYS