Identical Segments Or Quadrants Patents (Class D11/171)
  • Patent number: D248154
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: June 13, 1978
    Inventor: Everardo P. Sierra
  • Patent number: D393429
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: April 14, 1998
    Assignee: Lavern M. Creech
    Inventor: Lavern Mae Herron Creech