Patents Assigned to Vy-Dawn, Inc.
  • Four way corner level
    Patent number: D253581
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: December 4, 1979
    Assignee: Vy-Dawn, Inc.
    Inventor: Robert H. Vanderwerf
  • Corner level
    Patent number: D257330
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: October 14, 1980
    Assignee: Vy-Dawn, Inc.
    Inventor: Robert H. VanderWerf