Number | Date | Country | Kind |
---|---|---|---|
2001-324860 | Oct 2001 | JP |
Number | Name | Date | Kind |
---|---|---|---|
3896009 | Kobayashi et al. | Jul 1975 | A |
4221639 | Ninagawa et al. | Sep 1980 | A |
4440609 | Blakeslee et al. | Apr 1984 | A |
4706417 | Gary | Nov 1987 | A |
5683568 | Harris et al. | Nov 1997 | A |
6216649 | Laydera-Collins | Apr 2001 | B1 |
Entry |
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Japanese Publication (B2) No. S56-18678 (1981) with English translation abstract thereof. |