Title:
Envelope
United States Patent 2055716
Inventors:
Berkowitz, Eugene B.
Publication Date:
09/29/1936
Export Citation:
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Assignee:
Berkowitz, Eugene B.
Primary Class:
229/72
Other Classes:
229/71, 229/76, D19/3
International Classes:
B65D27/04; B65D27/00
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