Number | Date | Country | Kind |
---|---|---|---|
3-236163 | Sep 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4143381 | Downie | Mar 1979 | |
4686138 | Toyama et al. | Aug 1987 |
Number | Date | Country |
---|---|---|
3417582 | Nov 1984 | DEX |
Entry |
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Fuji, Database WPiL, Section Ch, Week 8141, JP-A-56105960 (1981). |
Toray, Database, WPiL, Section Ch, Week 8545, JP-A-60192693 (1984). |
Canon I, Database WPiL, Section Ch, Week 8824, JP-A-63102936 (1988). |
Canon II, Database WPiL, Section Ch, Week 8415, JP-A-59038087 (1984). |