US PATENT SUBCLASS 222 / 255
.~.~ Pumps only
Current as of:
June, 1999
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222 /
HD
DISPENSING
251
DF
WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.)
{30}
252
DF
.~ Plural {9}
255
.~.~ Pumps only
DEFINITION
Classification: 222/255
(under subclass 252) Dispensers in which all the discharge assistants are pumps.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254, for plural dispensing pumps with one or more discharge assistants of other types.
SEE OR SEARCH CLASS
137, Fluid Handling,
565.29+, for distribution systems comprising plural