The broken lines in the figures show unclaimed detail.
The broken lines in the figures show unclaimed detail.
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| 1072291 | Jan 2001 | EP |
| 2059748 | Feb 1997 | GB |
| 04189374 | Jul 1992 | JP |
| 2005021611 | Jan 2005 | JP |
| 2005296330 | Oct 2005 | JP |
| 2006341016 | Dec 2006 | JP |
| D1333424 | Jun 2008 | JP |
| 20010099365 | Nov 2001 | KR |
| 200339010 | Jan 2004 | KR |
| WO-2005003907 | Jan 2005 | WO |
| WO-2005032668 | Apr 2005 | WO |
| Entry |
|---|
| Advertisement for “Zero Friction Golf Tee,” retrieved from www.zerofrictiontees.com on Aug. 28, 2008. |
| Microfilmed Text of Japanese Utility Model Application No. SHO 47-117361 (Japanese Utility Model Public Disclosure No. SHO 49-73560). |
| Microfilmed Text of Utility Model Application No. HEI 2-59955 (Japanese Utility Model Public Disclosure No. HEI 4-18553) published Feb. 17, 1992. |
| Japanese Patent Public Disclosure No. 2005-296330. |
| Microfilmed Text of Utility Model Application Disclosure No. SHO 48-73686 (Japanese Utility Model Pbulic Disclosure No. SHO 50-20773). |