Number | Date | Country | Kind |
---|---|---|---|
87 10413 | Jul 1987 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3667008 | Katnack | May 1972 | |
3806361 | Lehner | Apr 1974 | |
4442966 | Jourdian et al. | Apr 1984 | |
4666737 | Gimpelson et al. | May 1987 |
Number | Date | Country |
---|---|---|
2658302 | Jul 1977 | DEX |
2492164 | Apr 1982 | FRX |
1525148 | Sep 1978 | GBX |
Entry |
---|
Patent Abstracts of Japan, vol. 9, No. 250 (E-353) [1993], Oct. 26, 1985. |