Number | Date | Country | Kind |
---|---|---|---|
4139665 | Dec 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2478229 | Berry | Aug 1949 | |
2534698 | Calfee | Dec 1950 | |
2593582 | Lontz et al. | Apr 1952 | |
2662065 | Berry | Dec 1953 | |
2881142 | Eldridge | Apr 1959 | |
2965595 | Brinker et al. | Dec 1960 | |
3012996 | McFarland | Dec 1961 | |
3105824 | Green et al. | Oct 1963 | |
3434996 | Salatiello et al. | Mar 1969 | |
3635926 | Gresham et al. | Jan 1972 | |
4025481 | Tournut et al. | May 1977 | |
4052278 | Brown et al. | Oct 1977 | |
4186121 | Gangal | Jan 1980 |
Number | Date | Country |
---|---|---|
630402 | Nov 1961 | CAX |
2052495 | May 1971 | DEX |
49-11746 | Mar 1974 | JPX |
51-41085 | Apr 1976 | JPX |
Entry |
---|
Hawley's Condensed Chemical Dictionary, Feb. 12, 1991 p. 797. |