Number | Date | Country | Kind |
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4012630 | Apr 1990 | DEX |
Number | Name | Date | Kind |
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4636545 | Konig et al. | Jan 1987 | |
4935480 | Zdrahala et al. | Jun 1990 |
Number | Date | Country |
---|---|---|
0127061 | May 1984 | EPX |
0156155 | Feb 1985 | EPX |
0157138 | Sep 1985 | EPX |
0339862 | Feb 1989 | EPX |
Entry |
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WPIL, File Supplier, AN=85 034494 [06], Derwent Publications Ltd., London, GB & JP-A-59 228 076 (Toyobo) Dec. 21, 1984. |
WPIL, File Supplier, AN=90 373458 [50], Derwent Publications Ltd. London, GB: & JP A 02 271 803. |