Number | Date | Country | Kind |
---|---|---|---|
1-53129 | Mar 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4866130 | Brown | Sep 1989 |
Number | Date | Country |
---|---|---|
295706 | Dec 1988 | EPX |
297142 | Jan 1989 | EPX |
304040 | Feb 1989 | EPX |
Entry |
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Patent Abstracts of Japan, vol. 12, No. 353(C-530) 21 Sep. 1988, & JP-A-63 108053 (Mitsubishi Petrochemical Co. Ltd.) 12 May 1988. |
Patent Abstracts of Japan, vol. 12, No. 326(C-525) 5 Sep. 1988, & JP-A-63 089564 (Mitsubishi Petrochemical Co. Ltd.) 20 Apr. 1988. |
Patent Abstracts of Japan, vol. 14, No. 96 (C-692) 22 Feb. 1990, & JP-A-01 304153 (Japan Synthetic Rubber Co. Ltd.). 07 Dec. 1989. |