Number | Name | Date | Kind |
---|---|---|---|
3134697 | Niedrach | May 1964 | |
3268364 | Cade et al. | Aug 1966 | |
3297484 | Niedrach | Jan 1967 | |
3850695 | Keller et al. | Nov 1974 | |
4904548 | Tajima | Feb 1990 | |
4923768 | Kaneko et al. | May 1990 | |
4973530 | Vanderborgh et al. | Nov 1990 | |
4988583 | Watkins et al. | Jan 1991 | |
5141824 | Hirota | Aug 1992 | |
5156926 | Lemoine | Oct 1992 |
Number | Date | Country |
---|---|---|
0293007 | Nov 1988 | EPX |
1439600 | Apr 1966 | FRX |
2139110 | Nov 1984 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 16, No. 246, Jun. 5, 1992 (JP, A, 40 51 466, Feb. 19, 1992). |
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