US PATENT SUBCLASS 210 / 233
.~ Piercing or closure knock out means

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

232  DF  WITH REPAIR OR ASSEMBLING MEANS {5}
233.~ Piercing or closure knock out means

DEFINITION

Classification: 210/233

(under subclass 232) Apparatus for piercing a container, or for knocking out a closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

235, for a device in which placement of a container opens a flow controller.

240, for a sealed filter unit provided with a frangible or

knockout section for conversion of flow direction.