Number | Date | Country | Kind |
---|---|---|---|
1-159712 | Jun 1989 | JPX | |
1-169906 | Jul 1989 | JPX | |
1-270309 | Oct 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4711790 | Morishige | Dec 1987 | |
4771728 | Bergman | Sep 1988 |
Number | Date | Country |
---|---|---|
52-30170 | Aug 1977 | JPX |
63-305965 | Dec 1988 | JPX |
9000970 | Feb 1990 | WOX |
Entry |
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Abstract of Japanese Unexamined Patent Application No. (Sho) 63-104681 (A) May 10, 1988. |