Patents Assigned to Sotralentz S.A. Nouvelle Societe
  • Patent number: D313687
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: January 8, 1991
    Assignee: Sotralentz S.A. Nouvelle Societe
    Inventors: Benoit Cheval, Pierre Pfeiffer, Paul Sigwalt