Number | Date | Country | Kind |
---|---|---|---|
4123933 | Jul 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3689346 | Rowland | Sep 1972 | |
3865912 | Rosenkranz et al. | Feb 1975 | |
4076071 | Rosenkranz et al. | Feb 1978 | |
4079104 | Dickson et al. | Mar 1978 | |
4153667 | Brady et al. | May 1979 | |
4606723 | Pasternicki | Aug 1986 | |
4997692 | Yoshino | Mar 1991 | |
5124110 | Yokobayashi | Jun 1992 |
Number | Date | Country |
---|---|---|
1816489 | Aug 1970 | DEX |
3002189 | Jul 1980 | DEX |
2042408 | Sep 1980 | GBX |
Entry |
---|
Patent Abstract of Japan, vol. 7, No. 71 (M-202) (1216) Mar. 24, 1983 & JP-A-57-212031 (Asahi Kasei Kogyo K.K.) Dec. 27, 1982. |