Method and apparatus for stacking pressure-sensitive adhesive envelopes

The present invention relates to a stack of pressure sensitive adhering envelopes wherein each envelope can be easily removed from the stack and used without having to moisten the flap. The flaps of the envelopes are treated on the back side with a release coating and on the front side with a pressu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHIMAZAKI, JUNJI J
Format: Patent
Sprache:eng
Schlagworte:
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