Envelope assembly

Envelopes – wrappers – and paperboard boxes – Envelope – Series

Patent

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Details

229 85, B65D 2710

Patent

active

040108899

ABSTRACT:
A sealed envelope is pre-stuffed with at least one insert sheet which is positively held in place against any shifting movements relative to the envelope by retention elements attached only to the envelope and in abutting engagement with marginal edges of the insert sheets.

REFERENCES:
patent: 3088754 (1963-05-01), Burgmer
patent: 3325188 (1967-06-01), Hiersteiner
patent: 3339827 (1967-09-01), Steidinger
patent: 3777971 (1973-12-01), Steidinger
patent: 3905545 (1975-09-01), Juszak et al.

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