Number | Date | Country | Kind |
---|---|---|---|
3807096 | Mar 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1902005 | Williams et al. | Mar 1935 | |
2259175 | Paul | Oct 1941 | |
2325985 | Semon | Aug 1943 | |
2894020 | McManimie | Jul 1959 | |
2909560 | McManimie | Oct 1959 | |
3514370 | Canevari | May 1970 | |
3600351 | Hunt et al. | Aug 1971 | |
3865763 | Feniak | Feb 1975 | |
3936536 | Brock | Feb 1976 | |
4214058 | Imamura et al. | Jul 1980 | |
4239663 | Ravagnani et al. | Dec 1980 | |
4244842 | Batzer et al. | Jan 1981 | |
4248987 | Maeda et al. | Feb 1981 | |
4283460 | Shemenski | Aug 1981 | |
4340515 | Frasser et al. | Jul 1982 | |
4376838 | Davis et al. | Mar 1983 | |
4550147 | Oohara | Oct 1985 | |
4684421 | Tate | Aug 1987 |
Number | Date | Country |
---|---|---|
0065476 | Nov 1982 | EPX |
55-29520 | Mar 1980 | JPX |
0993045 | May 1965 | GBX |
2022087 | Dec 1979 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 11, No. 379 (C-463)[2826], 12/10/87. |
Database Chemical Abstracts, vol. 93 (4):27583z, 3/1/80. |