Source: US Patent Office, patent number 3,288,470 granted November 29 1966 (filed January 2 1964) to Charles W. Post, of Chesterland, Ohio for his invention "Golf tee for correcting a hook or slice" (S239)
Suggest a change: Source: US Patent Office, patent number 3,288,470 granted November 29 1966 (filed January 2 1964) to Charles W. Post, of Chesterland, Ohio for his invention "Golf tee for correcting a hook or slice" (S239)