Number | Date | Country | Kind |
---|---|---|---|
3-28976 | Feb 1991 | JPX | |
3-208361 | Aug 1991 | JPX |
Number | Date | Country |
---|---|---|
0251260 | Jun 1987 | EPX |
0384482 | Feb 1990 | EPX |
91-57944 | Jun 1991 | JPX |
Entry |
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European Search Report dated Jun. 4, 1992. |
Patent Abstracts of Japan, vol. 10, No. 209, Jul. 22, 1986 (for Japanese Patent No. 61-48947 issued Mar. 10, 1986). |