| 526 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
|
| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {8} |
| 72 | DF | .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43} |
| 89 | DF | .~.~ Polymerizing in the presence of a specified material other than monomer {28} |
| 90 | DF | .~.~.~ Material contains transition metal or compound thereof {15} |
| 135 | DF | .~.~.~.~ With non-metal N, P, O, S, Se, Te, or halogen material other than nitrogen gas {4} |
| 145 |  | .~.~.~.~.~ Non-metal phosphorus-containing material |