Number | Date | Country | Kind |
---|---|---|---|
3-201357 | Jul 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4796247 | Vogelsang | Jan 1989 | |
4956832 | Miyasaka | Sep 1990 | |
5132956 | Ichikawa | Jul 1992 |
Number | Date | Country |
---|---|---|
0164642 | Dec 1985 | EPX |
0219261 | Apr 1987 | EPX |
0249781 | Dec 1987 | EPX |
Entry |
---|
Patent Abstracts of Japan, vol. 10, No. 338 (P-516) Nov. 15, 1986 & JP-A-61 139 984 (Nippon Columbia) Jun. 27, 1986. |