(under subclass 935) Made of a particular material wherein the composition or substance is rubberlike.
SEE OR SEARCH THIS CLASS, SUBCLASS:
582, for a dynamic, circumferential contact floating ring or bushing made of a particular elastomeric material for other than a piston.
SEE OR SEARCH CLASS
520, Synthetic Resins or Natural Rubbers,
1+, is the generic subclass for a synthetic resin or natural rubber preparation, and composition containing or treatment thereof is to be considered an integral part of Class 260 retaining all pertinent definitions and class lines and having Classes 521, 522, 523, 524, 525, 526, 527, and 528 indented thereunder.
