Number | Date | Country | Kind |
---|---|---|---|
1-176777 | Jul 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3627824 | Fujimoto | Dec 1971 | |
3865542 | Kalopissis | Feb 1975 | |
4240450 | Grollier | Oct 1980 | |
4445521 | Grollier | May 1984 | |
4711776 | Suzuki | Dec 1987 | |
4719099 | Grollier | Jan 1988 | |
4910013 | Kanamaru | Mar 1990 | |
4931216 | Igarashi | Jun 1990 |
Number | Date | Country |
---|---|---|
167382 | Jul 1985 | EPX |
312992 | Oct 1988 | EPX |
2345997 | Mar 1977 | FRX |
Entry |
---|
Patent Abstract of Japan, vol. 1, No. 97, (C-24), Aug. 30, 1977, & JP-A-52 59606, (Kao Sekken K. K.), May 17, 1977. |