Number | Name | Date | Kind |
---|---|---|---|
3589732 | Russell | Jun 1971 | |
3620537 | Conklin | Nov 1971 | |
3697073 | Dooley | Oct 1972 | |
3729315 | Conklin et al. | Apr 1973 | |
3778064 | Nutter | Dec 1973 | |
4086630 | Speiser et al. | Apr 1978 | |
4437672 | Armantrout et al. | Mar 1984 | |
4767121 | Tonner | Aug 1988 | |
5020802 | af Strom | Jun 1991 |
Number | Date | Country |
---|---|---|
4322672 | Nov 1992 | JPX |
2154146 | Sep 1985 | GBX |
Entry |
---|
"Golfmat", The Journal, Buzz McClain, Feb. 1991, pp. A12-A13. |