Crank Type Patents (Class D19/74)
  • Pencil sharpener
    Patent number: D243173
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: January 25, 1977
    Assignee: American Can Company
    Inventor: John M. Bitner
  • Pencil sharpener
    Patent number: D540873
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: April 17, 2007
    Inventor: Yong Kyu Han
  • Pencil sharpener
    Patent number: D540874
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: April 17, 2007
    Inventor: Yong Kyu Han
  • Pencil sharpener
    Patent number: D541868
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: May 1, 2007
    Inventor: Yong Kyu Han
  • Disposable receptacle for a pencil sharpener
    Patent number: D284391
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: June 24, 1986
    Inventor: Kenneth S. Obenski
  • Crank handle
    Patent number: D292550
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: November 3, 1987
    Assignee: Lear Siegler, Inc.
    Inventor: Francis G. Jackson
  • Combined tape measure and pencil sharpener
    Patent number: D339536
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: September 21, 1993
    Inventor: Selina Ribron
  • Carpenter's rule with pencil sharpener
    Patent number: D367618
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: March 5, 1996
    Inventors: Stephen C. Stewart, Shirley N. Truex
  • Pencil sharpener
    Patent number: D417238
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: November 30, 1999
    Inventor: Bao Ruh Huang