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Class Information
Number: 229/312
Name: Envelopes, wrappers, and paperboard boxes > Envelope > Having means to facilitate opening the envelope by severing it (e.g., tearing, cutting, piercing, etc.) > Envelope includes a separate tearing element which is gripped and pulled to open the envelope > Cord, string, wire, or thread > Extends along envelope side edge
Description: Subject matter wherein the cord, string, wire, or thread is positioned at a lateral margin of the envelope.
Patents under this class:
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