Number | Date | Country | Kind |
---|---|---|---|
9119487 | Sep 1991 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
5048813 | Wierszewski et al. | Sep 1991 | |
5053814 | Takano et al. | Oct 1991 | |
5067835 | Yamamoto et al. | Nov 1991 | |
5099287 | Sato | Mar 1992 |
Number | Date | Country |
---|---|---|
0212781 | Mar 1987 | EPX |
0295969 | Dec 1988 | EPX |
Entry |
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Xerox Disclosure Journal; vol. 15; No. 4, Jul./Aug. 1990; p. 265. |