(under subclass 129) Dispensers having means for varying the discharge from the plural sources interconnected for uniform or proportional variations in each of the discharging volumes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267+, for single sources of supply having sets of discharging assistants with common discharge volume varying means.
282+, for single discharge assistants with discharge volume varying means.
434+, for trap chamber cut-off combinations with trap chamber volume varying means.
482+, for single supply containers having plural openings with flow controllers or closures for at least two of the openings.
SEE OR SEARCH CLASS 137, Fluid Handling,
87.01+, for self-proportioning or correlating fluid handling systems.
