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63-300652 | Nov 1988 | JPX |
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3987756 | Katayama et al. | Oct 1976 | |
4579443 | Abuyama et al. | Apr 1986 | |
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4801966 | Ikeda | Jan 1989 | |
4841329 | Kasamura et al. | Jun 1989 | |
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4958191 | Yamada et al. | Sep 1990 |
Number | Date | Country |
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266946 | May 1988 | EPX |
287122 | Oct 1988 | EPX |
Entry |
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European Search Report for European Patent Application 89312354.7 and Annex to the European Search Report. |