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| D305074 | Mockovak | Dec 1989 | S |
| D307193 | Nikolaus | Apr 1990 | S |
| 5050305 | Baker et al. | Sep 1991 | A |
| 5165172 | Weinrauch | Nov 1992 | A |
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| D356185 | Rizzuto, Jr. | Mar 1995 | S |
| D362517 | Pirmayer | Sep 1995 | S |
| 5579581 | Melton | Dec 1996 | A |
| 5606799 | Melton | Mar 1997 | A |
| 5699616 | Ogawa | Dec 1997 | A |
| D405924 | Lebherz | Feb 1999 | S |
| 5970616 | Wahl et al. | Oct 1999 | A |
| D422118 | Kitagawa et al. | Mar 2000 | S |
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| D436229 | Eguchi et al. | Jan 2001 | S |
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| Number | Date | Country |
|---|---|---|
| 198 59 017 | Feb 2000 | EP |
| 405200172 | Oct 1993 | JP |
| WO 0037225 | Jun 2000 | WO |
| WO 0037226 | Jun 2000 | WO |
| Entry |
|---|
| Hong Kong Enterprise Jun. 1996, p. 647: tiem No. HT-268. |