US PATENT SUBCLASS 229 / 942
NONREUSABLE BOX HAVING MEANS TO FACILITATE COLLAPSING OR DISASSEMBLING FOR DISPOSAL OR FOR RECYCLING OF THE BOX MATERIAL (E.G., "KNOCKDOWN" TYPE)

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

942NONREUSABLE BOX HAVING MEANS TO FACILITATE COLLAPSING OR DISASSEMBLING FOR DISPOSAL OR FOR RECYCLING OF THE BOX MATERIAL (E.G., "KNOCKDOWN" TYPE)