Envelope convenient to open

The utility model discloses an envelope convenient to open. The envelope comprises an envelope body and a main envelope tongue, an additional sealing tongue is further included, the main sealing tongue comprises a hand tearing part and a sealing part; the edge of the tip portion of the main sealing...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JING YONGJU, BO SHUKUI
Format: Patent
Sprache:chi ; eng
Schlagworte:
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