(under subclass 61) Apparatus in which (1) the relatively movable working members comprise movably mounted cylinders or (2) the relatively movable working members are disposed in movably mounted cylinders.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56+, for a plurality of cylinders which rotate during relative reciprocatory movement of said cylinders and pistons positioned therein.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
176, for relatively movable working members including moving cylinders provided with fluid control means.
417, Pumps, 467, for expansible chamber type pumps having plural relatively movable cylinders.
