Number | Date | Country | Kind |
---|---|---|---|
2001-147712 | May 2001 | JP |
Number | Name | Date | Kind |
---|---|---|---|
6315683 | Yoshida | Nov 2001 | B1 |
6494793 | Ohama | Dec 2002 | B1 |
6592470 | Watanabe et al. | Jul 2003 | B2 |
20030064826 | Voorheis | Apr 2003 | A1 |
Number | Date | Country |
---|---|---|
2669051 | Jul 1997 | JP |
10-192446 | Jul 1998 | JP |
11-262544 | Sep 1999 | JP |
2000-217948 | Aug 2000 | JP |
2000-300697 | Oct 2000 | JP |
2001-054589 | Feb 2001 | JP |
2002-315848 | Oct 2002 | JP |
Entry |
---|
Thain Science and Golf IV p. 319-327, Jul. 2002. |