Number | Date | Country | Kind |
---|---|---|---|
152334 | May 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3086008 | Opila et al. | Apr 1963 | |
3974032 | Harjes et al. | Aug 1976 | |
4668626 | Kobayashi et al. | May 1987 | |
4782143 | Morehouse et al. | Nov 1988 | |
5139575 | Matsuda et al. | Aug 1992 |
Entry |
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DATABASE WPIL Week 1788, Dervent Publications Ltd., London, GB; AN 88-117484. |
Abstract No. 126603z, Chemical Abstracts, vol. 97, No. 15, Columbus, Ohio. |