Number | Date | Country | Kind |
---|---|---|---|
2-405345 | Dec 1990 | JPX | |
3-144226 | May 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4378424 | Atland et al. | Mar 1983 | |
4861702 | Suzuki et al. | Aug 1989 | |
4939075 | Bergthaller et al. | Jul 1990 | |
5026629 | McGuckin et al. | Jun 1991 | |
5066569 | Nagashima et al. | Nov 1991 |
Number | Date | Country |
---|---|---|
0431568 | Dec 1991 | EPX |
Entry |
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U.S. Statutory Invention Registration H953, Goto et al., Aug. 1991, class 430, subclass 429. |
Research Disclosure 20430, Apr. 1981, pp. 159-160. |