US PATENT SUBCLASS 222 / 6
.~ Parallel connected, serially used

Current as of: June, 1999
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222 /   HD   DISPENSING

3  DF  GAS OR VAPOR DISPENSING {3}
6.~ Parallel connected, serially used

DEFINITION

Classification: 222/6

(under subclass 3) Dispensers having plural sources of supply connected to the outlet in parallel but controlled for successive use.

SEE OR SEARCH THIS CLASS, SUBCLASS:

129+, for other plural sources.

SEE OR SEARCH CLASS

137, Fluid Handling,

113, for similar devices comprising plural inflows to a system controlled by the depletion of a source.