Number | Date | Country | Kind |
---|---|---|---|
3-116275 | May 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2248757 | Herold | Jul 1941 | |
3602818 | Anderlecht | Aug 1971 | |
3757254 | Takahashi et al. | Sep 1973 | |
4025853 | Addeo | May 1977 | |
4034295 | Kotezawa et al. | Jul 1977 | |
4295223 | Shutterly | Oct 1981 | |
4823380 | Kohen et al. | Apr 1989 | |
4910792 | Takahata et al. | Mar 1990 | |
5095539 | Leveque | Mar 1992 | |
5133014 | Pritchard | Jul 1992 |
Number | Date | Country |
---|---|---|
57-155842 | Sep 1982 | JPX |
Entry |
---|
Patent Abstracts of Japan, vol. 6, No. 259, 17 Dec. 1982. |