Number | Date | Country | Kind |
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63-318994 | Dec 1988 | JPX |
Number | Name | Date | Kind |
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4105324 | Seil | Aug 1978 | |
4456365 | Yuasa | Jun 1984 | |
4522904 | Kina et al. | Jun 1985 | |
4811045 | Matsushita et al. | Mar 1989 | |
4920380 | Ueda et al. | Apr 1990 |
Number | Date | Country |
---|---|---|
59-37550 | Sep 1959 | JPX |
Entry |
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U.S. patent application Ser. No. 07/226,056. |