Coating or plastic composition which are specially designed for use in recording sound.
(1) Note. The broad reference to shape or to the presence of grooves is not considered enough structure to take a claim to a sound record, which is otherwise defined solely by composition of matter, away from this class.
SEE OR SEARCH CLASS
369, Dynamic Information Storage or Retrieval,
272+, for sound records which include significant structure, other than shape or presence of grooves.
