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Number | Name | Date | Kind |
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4682287 | Mizuno et al. | Jul 1987 | |
4754435 | Takamatsu | Jun 1988 |
Number | Date | Country |
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0067925A3 | Dec 1982 | EPX |
0304981A2 | Nov 1989 | EPX |
2171543A | Feb 1985 | GBX |
Entry |
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Patent Abstracts of Japan, No. JP59016187, May 17, 1984. |
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