Packing box and manufacturing method thereof
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United States of America Patent
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Jan 14, 2014
Grant Date -
Sep 22, 2011
app pub date -
Jan 14, 2009
filing date -
Jan 14, 2009
priority date (Note) -
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Abstract
A packing box comprising a rectangular bottom plate and a plurality of side plates erected from the periphery of the bottom plate and surrounding the bottom plate, in which at four corners in corner parts formed by the plurality of side plates, frame columns, each erected from the bottom plate side and extending to the midway to a distal end of the side plates, are formed and joined to the side plates, and the bottom plate, the side plates, and the frame columns are formed by one corrugated fiberboard sheet.
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