(under subclass 202) Dispensers in which the container wall or part thereof which receives the force causing vibration, is constructed of flexible material in whole or in part.
(1) Note. In the patents in subclass 202 in which a wall receives a blow or force to impart vibrations, the wall is of rigid or resilient material which may flex slightly due to the blow or force. The patents in subclass 203 have the wall made of flexible material (as a fabric) or if made of rigid material for the most part involve at least some flexible material (as in the joint) to permit motion.
