Number | Date | Country | Kind |
---|---|---|---|
3715891 | May 1987 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3234181 | Olivier | Feb 1966 | |
4696994 | Nakajima et al. | Sep 1987 |
Entry |
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Patent Abstracts of Japan, Band 10, Nr. 230 (C-365)[2286], 1986; & JP-A-61 64 730 (Sumitomo Bakelite Co., Ltd.) 1986. |
Patent Abstracts of Japan, Band 10, Nr. 350 (C-387)[2406], 1986; & JP-A-61 151 237 (Ube Ind. Ltd.) 1986. |
Patent Abstracts of Japan, Band 11, Nr. 89 (C-411)[2536], 1986; & JP-A-61 241 360 (Nitto Electric Ind. Co., Ltd.) 1986. |