Number | Date | Country | Kind |
---|---|---|---|
3-228102 | Sep 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4302571 | Arai et al. | Nov 1981 |
Number | Date | Country |
---|---|---|
0322857 | Jul 1989 | EPX |
0324156 | Jul 1989 | EPX |
Entry |
---|
Database WPIL, Abstract, AN 88-171026 Derwent Publications Ltd., London, GB; of JP-A-63 108 058 (Toshiba Silicone KK) May 12, 1988. |