TREA

Jean-Etienne Lepage

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  • Charenton-Le-Pont, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical quality surfacing tool
    • Patent number 8,894,471
    • Issue date Nov 25, 2014
    • Essilor International (Compagnie Générale d'Optique)
    • Alain Batard
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Optical grade surfacing tool
    • Patent number 8,668,557
    • Issue date Mar 11, 2014
    • Essilor International
    • Alain Batard
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents