Number | Date | Country | Kind |
---|---|---|---|
63-142522 | Jun 1988 | JPX | |
1-141854 | Jun 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3301834 | Christman | Jan 1967 | |
3600368 | Schaum et al. | Aug 1971 | |
3622548 | Emde et al. | Nov 1971 | |
3645992 | Elston | Feb 1972 |
Number | Date | Country |
---|---|---|
2532115 | Feb 1977 | DEX |
46-21212 | Jun 1971 | JPX |
47-26185 | Jul 1972 | JPX |
55-24447 | Jun 1980 | JPX |
63-17912 | Jan 1988 | JPX |
1403372 | Aug 1975 | GBX |
2093047 | Aug 1982 | GBX |
Entry |
---|
Patent Abstracts of Japan, vol. 12, No. 223 (C-507)[3070], 24th Jun. 1988; & JP-A-63 20 309 (Japan Synthetic Rubber Co., Ltd.) 28-01-1988. |