US PATENT SUBCLASS 493 / 206
.~.~.~ By oppositely moving work gripping means

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

51  DF  CONTAINER MAKING {2}
186  DF  .~ Pliable container (e.g., bag, envelope, etc.) {9}
189  DF  .~.~ Including heat sealing {9}
206.~.~.~ By oppositely moving work gripping means

DEFINITION

Classification: 493/206

By oppositely moving work gripping means:

(under subclass 189) Method or apparatus comprising workpiece engaging surfaces each adapted to move toward the workpiece and toward each other to squeeze the workpiece therebetween.