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4175033 | Hilfman | Nov 1979 | |
4534883 | Sugimori et al. | Aug 1985 | |
4663073 | Sucrow et al. | May 1987 | |
4839267 | Monbaliu et al. | Jun 1989 | |
4840745 | Tsubouchi et al. | Jun 1989 | |
4911823 | Chen et al. | Mar 1990 | |
4926000 | Morrison | May 1990 | |
4990239 | Derr, Jr. et al. | Feb 1991 | |
5113034 | Soled et al. | May 1992 |
Number | Date | Country |
---|---|---|
1-288339 | Jul 1989 | JPX |
0825473 | May 1981 | SUX |
9414732 | Jul 1994 | WOX |
Entry |
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