Double coin pocket mailer
United States Patent 3026019
US Patent References:
Duplex envelope
- - 1666957

Envelope
- - 1985103

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- - 2840296

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- - 2928583


Inventors:
Argabright, William S.
Publication Date:
03/20/1962
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Assignee:
DOUBLE ENVELOPE CORP
Primary Class:
229/72
Other Classes:
229/70, 229/300, 229/80.500
International Classes:
B65D27/06; B65D27/08; B65D27/00
Foreign References:
GB419327A