Number | Date | Country | Kind |
---|---|---|---|
4-051299 | Mar 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4888691 | George | Dec 1989 | |
4901232 | Harrington et al. | Feb 1990 | |
4939644 | Harrington et al. | Jul 1990 | |
4943912 | Aoyama et al. | Jul 1990 | |
5014194 | Itoh | May 1991 | |
5109484 | Hughes et al. | Apr 1992 | |
5179660 | DeVany et al. | Jan 1993 | |
5257352 | Yamamoto et al. | Oct 1993 | |
5337402 | Kitagawa et al. | Aug 1994 | |
5341493 | Yanai et al. | Aug 1994 |
Number | Date | Country |
---|---|---|
0165915A2 | EPX | |
0424658A2 | EPX | |
60-183660 | Sep 1985 | JPX |
63-204448 | Aug 1988 | JPX |
Entry |
---|
Database WPIL, Week 9233, Derwent Publications Ltd., London, GB; AN 92-274775 and RD 339027, 920710, Abstract. (English). |