Self-opening pull out letter
United States Patent 3215337
US Patent References:
Envelope
- - 1702401

Self-contained envelope opener and contents ejector
- - 2644634


Inventors:
Walter, Rosenthal
Publication Date:
11/02/1965
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Assignee:
Walter, Rosenthal
Primary Class:
206/459.500
Other Classes:
206/804, 229/312
International Classes:
B65D27/38; B65D27/00
Foreign References:
IT472216B