Number | Date | Country | Kind |
---|---|---|---|
4-205356 | Jul 1992 | JPX | |
4-211747 | Aug 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3108895 | Howell | Oct 1963 | |
3237231 | Zink | Mar 1966 | |
3242517 | Buros et al. | Mar 1966 | |
3440675 | Yeaman | Apr 1969 | |
3938213 | Difede | Feb 1976 | |
3974539 | Barouh et al. | Aug 1976 | |
4845524 | Okamoto et al. | Jul 1989 | |
5045420 | Hosono et al. | Sep 1991 |
Entry |
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Patent Abstracts of Japan, P-721, Jun. 25, 1988, vol. 12, No. 224, JP-A-63 17479, Jan. 25, 1988. |
Patent Abstracts of Japan, P-908, Aug. 2, 1989, vol. 13, No. 342, JP-A-1 101576, Apr. 19, 1989. |