Patents Assigned to Proptis, S.A.
  • Apparatus for the preparation of eyeglass lenses, prior to the shaping and/or bevelling thereof
    Patent number: 4169318
    Abstract: Apparatus for holding a lens to define the relative positions of the optical and geometrical centers. The apparatus is provided with means for applying a reference mark to the lens or affixing a holding member allowing the shaping and/or bevelling operations for adapting the lens to an eyeglass frame in optimum conditions.
    Type: Grant
    Filed: October 12, 1977
    Date of Patent: October 2, 1979
    Assignee: Proptis, S.A.
    Inventor: Antonio C. Cortes