Patents Assigned to Lamba Systems, Inc.
  • Communication apparatus
    Patent number: 4772869
    Abstract: A portable information marker having a tetrahedron stand joined to a base supported on a surface. The stand has a top wall releasably accommodating an information unit. The information unit and top wall have interlocking slot and ear structures allowing the information unit to be removed from the top wall and replaced with an alternate information unit. The alternate information unit can be a flashing light unit.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: September 20, 1988
    Assignee: Lamba Systems, Inc.
    Inventors: Nick G. Grammas, Michael T. Callas
  • Combined road marker and lock-in sign
    Patent number: D277738
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: February 26, 1985
    Assignee: Lamba Systems, Inc.
    Inventors: Nick G. Grammas, Michael T. Callas
  • Combined road marker and flashing light
    Patent number: D277739
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: February 26, 1985
    Assignee: Lamba Systems, Inc.
    Inventors: Nick G. Grammas, Michael T. Callas