Number | Date | Country | Kind |
---|---|---|---|
4-179869 | Jul 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1682239 | Patrick | Aug 1928 | |
1848266 | Patrick et al. | Mar 1932 | |
4571365 | Ashlock et al. | Feb 1986 | |
5094691 | Watanabe et al. | Mar 1992 | |
5165992 | Yajima | Nov 1992 | |
5188667 | Watanabe et al. | Feb 1993 | |
5366545 | Yajima et al. | Nov 1994 |
Number | Date | Country |
---|---|---|
4035418 | May 1991 | DEX |
2-48418 | Feb 1990 | JPX |
Entry |
---|
Database WPI, Derwent Publications Ltd., AN 80-33510C, JP-A-55 047 137, Apr. 4, 1980. |