US PATENT SUBCLASS 229 / 117.29
.~.~ Means for venting air trapped between the liner and the box


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



229 /   HD   ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

100  DF  PAPERBOARD BOX {54}
117.27  DD  .~ With inner flexible or flaccid bag liner {6}
117.29.~.~ Means for venting air trapped between the liner and the box