(under the class definition) Dispensers having means to prevent or render difficult the introduction of material into
the dispenser.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80+, particularly, subclasses 80, 85+, and 87 for structures which cut or punch a container for the purpose of refill preventing.
476, and subclasses following the same, for mere valve, flow controller or closure structure for the dispensing outlet. Refill preventing means requires more than such structure.
SEE OR SEARCH CLASS
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, 346+, and 348+ for receivers which have features of structure to prevent filling except by use of a dispenser having special cooperative features.
