US PATENT SUBCLASS 229 / FOR 104
.~.~ Wood reinforced (229/23 C)

Current as of: June, 1999
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229 /   HD   ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

*  DD  PAPERBOARD BOX (229/100) {1}
FOR 100  DD  .~ Multiple (229/23 R) {4}
FOR 104.~.~ Wood reinforced (229/23 C)