| 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} |
| 291 | DF | .~.~ From halogen containing monomer having at least three carbon atoms {7} |
| 292.1 | DF | .~.~.~ Halogen monomer is carboxylic acid ester {6} |
| 292.6 | | .~.~.~.~ Interpolymerized with a monomer containing atom other than carbon, hydrogen, or halogen |