Patents Assigned to Flamor S.A.
  • Process for making a piece of hollow jewelry
    Patent number: 3973716
    Abstract: A process for producing hollow gold jewelry. A temporary substrate of soft iron is plated with precious metal leaf. A strip cut form a bimetallic plate thus plated is drawn, with incorporation of a temporary soft-iron core, to a precious metal covered wire, which can be fabricated into hollow pieces of jewelry, the soft iron being eliminated by an aqueous solution of H.sub.2 SO.sub.4.
    Type: Grant
    Filed: December 31, 1974
    Date of Patent: August 10, 1976
    Assignee: Flamor S.A.
    Inventor: Paul Flamand