528 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
* | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {23} |
230 | DF | .~ FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT {12} |
266 | DF | .~.~ With nonaldehyde or nonaldehyde derivative nitrogen-containing compound {3} |
267 | .~.~.~ Nitrogen-containing nonaldehyde or nonaldehyde derivative contains a nitrile group |