Number | Date | Country | Kind |
---|---|---|---|
5-055098 | Feb 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4419116 | Nakahana | Dec 1983 | |
4707173 | Kawazoe | Nov 1987 |
Entry |
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Patent Abstracts of Japan, vol. 12 No. 279 (C-517) 1 Aug. 1988. |
Patent Abstracts of Japan, vol. 14, No. 215 (C-716) 8 May 1990. |
Patent Abstracts of Japan, vol. 9, No. 331 (C-321) 25 Dec. 1985. |