2916511 | beta, beta'-dicyanovinyl thioether | 1959-12-08 | ||
2914534 | Certain substituted 6-amino-3, 5-dicyano-2-picolines and process | 1959-11-24 | ||
2762837 | Alpha-(1, 1, 2, 2-tetracyanoethyl) ketones and their preparation | 1956-09-11 | ||
2725371 | Cyanopropene phosphonamides and polymers thereof | 1955-11-29 |
GB796572A | 1958-06-11 |