Number | Date | Country | Kind |
---|---|---|---|
52/44676 | Apr 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2790819 | Godfrey | Apr 1957 | |
2823225 | Senkbeil et al. | Feb 1958 | |
3338703 | Weil et al. | Aug 1967 |
Number | Date | Country |
---|---|---|
1450005 | Sep 1976 | GBX |
Entry |
---|
Swiss Pat. 401,022, Chem. Abst. vol. 65, 8820g. |
Chem Abst. vol. 68, 77968h, Russian Pat. 197,561. |
Japanese Patent 88627-Derwent, Central Patent Index, 71172x138, (1976). |
German Offen. 2,250,327, Chem. Abst. vol. 79, (1973), 53029d. |
German Offen. 2,541,237, Chem. Abst. vol. 85, (42267c), 1976. |
U.S. Patent 2,390,941, Chem. Abst. vol. 40, (1946), 2264.sup.5. |
Morris, Chem. Abst. vol. 70, (1969), 86493t. |