Number | Date | Country | Kind |
---|---|---|---|
60-103148 | May 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2156124 | Novotny | Apr 1939 | |
3434997 | Schmoll | Mar 1969 | |
3441529 | Tyler | Apr 1969 | |
3472915 | Rider | Oct 1969 | |
3928526 | Koyama | Dec 1975 | |
4010163 | Hesse et al. | Mar 1977 | |
4157993 | Funabiki et al. | Jun 1979 | |
4316827 | Pacala et al. | Feb 1982 | |
4640971 | Echigo et al. | Feb 1987 |
Number | Date | Country |
---|---|---|
4207778 | Nov 1978 | JPX |
Entry |
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Abstract of Japanese Patent Publication 42077/78, Toyo, May, 1976. |
Encyclopedia of Chemical Technology, vol. 17, 373-375 & 384-387 (1982). |