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Dustproof seal strip and adhesive system

Image Number 3 for United States Patent #6673188.

There is disclosed a dust sealing label strip having a plurality of dust sealing labels arranged on a release liner strip for application over a handle opening of a corrugated box to seal the opening. The strip is usable in rapid application of the sealing labels over handle openings of corrugated boxes to provide seal to the corrugated boxes and function as grips for the box. Each of the dust sealing labels has a substrate having an aperture provided corresponding to the handle opening of a corrugated box, a stretchable film laminated to the substrate to cover the aperture, and an adhesive layer. The plurality of dust sealing labels are arranged peelably via the adhesive layer on the release liner strip in at least one line at predetermined intervals.

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