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3-125991 | May 1991 | JPX |
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3902615 | Levy et al. | Sep 1975 | |
3937579 | Schmidt | Feb 1976 | |
4787800 | Sone et al. | Nov 1988 | |
4996763 | Sano et al. | Mar 1991 | |
5120134 | Kosugi | Jun 1992 | |
5182615 | Kurdsawa et al. | Jan 1993 |
Number | Date | Country |
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1-302259 | Dec 1989 | JPX |
Entry |
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Patent Abstracts Of Japan, vol. 5, No. 110; 17 Jul. 1981; Publication No. JP 56-051732 (Chiyou LSI Gijutsu Kenkyu Kumiai). |
Patent Abstracts Of Japan, vol. 7, No. 27: 3 Feb. 1983; publication No. 57.183031 (Tokto Shibaura Denki). |
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