Number | Date | Country | Kind |
---|---|---|---|
89 11441 | Aug 1989 | FRX |
Number | Date | Country |
---|---|---|
323366 | Jul 1989 | EPX |
3314881 | Oct 1984 | DEX |
60-12653 | Jan 1985 | JPX |
617554 | Jan 1986 | JPX |
154648 | Mar 1989 | JPX |
Entry |
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Patent Abstracts of Japan, vol. 13, No. 173, Apr. 24, 1989. |