Number | Date | Country | Kind |
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1-36480 | Feb 1989 | JPX |
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2964712 | Dean et al. | Dec 1960 | |
3473128 | Kiser | Oct 1969 | |
3867712 | Harthill et al. | Feb 1975 | |
4192970 | Kahn | Mar 1980 | |
4395779 | Fujino et al. | Jul 1983 | |
4551755 | Matsuda et al. | Nov 1985 | |
4816770 | Naumann | Mar 1989 | |
5051703 | Idogawa et al. | Sep 1991 |
Number | Date | Country |
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0158231 | Mar 1985 | EPX |
56-68014 | Aug 1981 | JPX |
Entry |
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A copy of the European Search Report. |
Patent Abstracts of Japan, vol. 12, No. 435 (E-683). |