Patents Assigned to Ewing-Records & Associates, Inc.
  • California type platform
    Patent number: 3990371
    Abstract: A California type platform having an elongate frame which may be raised above the platform by wheels carried by the frame in position to be forced downwardly against the tunnel track by means of inflatable air bags.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: November 9, 1976
    Assignee: Ewing-Records & Associates, Inc.
    Inventor: Louis K. Jacobsen