Key Locks Patents (Class 84/167)
  • Guitar and chord playing attachment pivotally mounted thereon
    Patent number: 4249450
    Abstract: A guitar having four strings, two frets and an attachment pivotally mounted between the frets whereby the three principal chords of any key to which it has been tuned may be obtained clearly.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: February 10, 1981
    Inventor: William J. Quemore, Sr.