Title:
Quick opening construction for window envelopes
United States Patent 2828065
US Patent References:
/0797337.html
- - 0797337

/0895053.html
- - 0895053

Envelope
- - 1494827

Envelope
- - 2055716

Envelope
- - 2099007


Inventors:
Heywood, Vincent E.
Publication Date:
03/25/1958
View Patent Images:
Download PDF 2828065 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
US ENVELOPE CO
Primary Class:
229/316
Other Classes:
206/459.500
International Classes:
B65D27/34; B65D27/00
US Patent References:
2334413Envelope
2349234Envelope
Foreign References:
DE115639C