Patents Assigned to Gram S.A.
  • Complex column
    Patent number: 4407106
    Abstract: The invention relates to a complex column comprising a metallic core (1) embedded in a mass of concrete (2). This core (1) is accessible from the outside of the concrete mass (2) at each end of the column for its assembly to a structure.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: October 4, 1983
    Assignee: Gram S.A.
    Inventor: Rene A. Beck