Number | Name | Date | Kind |
---|---|---|---|
3546180 | Caldwell et al. | Dec 1970 | |
4425405 | Murakami et al. | Jan 1984 | |
4503111 | Jaeger et al. | Mar 1985 | |
4578285 | Viola | Mar 1986 | |
4686118 | Arai et al. | Aug 1987 | |
4741969 | Hayama et al. | May 1988 |
Entry |
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Derwent Abstract of Japanese Public Disclosure No. J61032788-A, published Feb. 15, 1986. |