(under subclass 218) Apparatus in which the working member moves back and forth about an axis to describe an arc of not more than 360 degrees.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177, 223 and 266, for expansible chamber motors having oscillating working members in organizations of the type provided therein.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
67, for organizations which include relatively moving, oscillating working members and; subclasses 120+ for oscillating working members, per se, or for cylinders adapted to cooperate therewith.
