Patents Assigned to K & R Instruments, Inc.
  • Pedometer
    Patent number: D312046
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: November 13, 1990
    Assignee: K & R Instruments, Inc.
    Inventor: Gerhard Ruehlemann
  • Pedometer
    Patent number: D312049
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: November 13, 1990
    Assignee: K & R Instruments, Inc.
    Inventor: Gerhard Ruehlemann
  • Telephone directory
    Patent number: D312355
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: November 27, 1990
    Assignee: K & R Instruments, Inc.
    Inventor: H. W. Korten