Number | Date | Country | Kind |
---|---|---|---|
2-249090 | Sep 1990 | JPX |
Number | Date | Country |
---|---|---|
1426252 | Dec 1966 | FRX |
61-168221 | Jul 1986 | JPX |
0248665 | Dec 1987 | JPX |
63-244710 | Oct 1988 | JPX |
63-244711 | Oct 1988 | JPX |
Entry |
---|
Patent Abstracts of Japan, vol. 13, No. 240 (E-757) (3588), Jun. 6, 1989 and JP-1 044 006 (Sieko Epson Corp), Feb. 16 1989. |