Number | Name | Date | Kind |
---|---|---|---|
1190459 | LeMoine et al. | Jul 1916 | |
1454426 | Clements | May 1923 | |
3106394 | Gelbart | Oct 1963 | |
4142715 | Matsumoto | Mar 1979 | |
4223471 | Greenberg | Sep 1980 | |
4586280 | Dang | May 1986 | |
4817311 | Ong | Apr 1989 | |
4923429 | Lewis | May 1990 | |
5018288 | Yang | May 1991 | |
5131175 | Liu | Jul 1992 |
Number | Date | Country |
---|---|---|
575173 | Apr 1933 | DE2 |
3618952 | Dec 1987 | DEX |
1442243 | Dec 1988 | SUX |
Entry |
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U. K. Search Report No. 9113145.8. |