Number | Name | Date | Kind |
---|---|---|---|
3252437 | Pickett | May 1966 | |
3722441 | Kitchener et al. | Mar 1973 | |
3919942 | Galya et al. | Nov 1975 | |
4152996 | Van Amburg | May 1979 | |
4181085 | Conner, Jr. | Jan 1980 | |
4236292 | Orr et al. | Dec 1980 | |
4307675 | Off et al. | Dec 1981 | |
4333232 | Orr et al. | Jun 1982 | |
4362116 | Sen Gupta et al. | Dec 1982 | |
4526117 | Willenbacher | Jul 1985 | |
4648337 | Mall | Mar 1987 | |
4722290 | Manuel et al. | Feb 1988 | |
4979450 | Dudek et al. | Dec 1990 | |
5069148 | Ishikawa | Dec 1991 |
Number | Date | Country |
---|---|---|
3139426 | Feb 1983 | DEX |
3314717 | Feb 1984 | DEX |
3519344 | Apr 1986 | DEX |
64-25898 | Jan 1989 | JPX |
1-101493 | Jul 1989 | JPX |
2062707 | May 1981 | GBX |
Entry |
---|
Ishikawa et al. U.S. Ser. No. 578,669, filed Sep. 7, 1990 (pending). |