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3325568 | Richter | Jun 1967 | |
4551416 | Chandross et al. | Nov 1985 | |
4632900 | Demmer et al. | Dec 1986 | |
4666820 | Chandross et al. | May 1987 | |
4975351 | Akaki et al. | Dec 1990 | |
5082976 | Blank et al. | Jan 1992 | |
5134054 | Iwasawa et al. | Jul 1992 | |
5166036 | Seio et al. | Nov 1992 | |
5230984 | Tachiki et al. | May 1993 |
Number | Date | Country |
---|---|---|
63-247749 | Oct 1987 | JPX |
63-146029 | Jun 1988 | JPX |
3-131626 | Jun 1991 | JPX |
3-141357 | Jun 1991 | JPX |
150832 | Jan 1962 | SUX |
Entry |
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