Title:
Coded envelope to facilitate sorting
United States Patent 2775405


Inventors:
Louis, Paston
Application Number:
US37495453A
Publication Date:
12/25/1956
Filing Date:
08/18/1953
Assignee:
Louis, Paston
Primary Class:
Other Classes:
101/389.1, 209/584, 209/900, 229/68.1, 283/71, 283/116, D19/3
International Classes:
B07C3/18
View Patent Images:
US Patent References:
2742222Envelopes1956-04-17
2709001Sorting stamp1955-05-24
2690301Record card1954-09-28
2675170Record card construction1954-04-13
2650024Record member1953-08-25
RE23385N/A1951-07-03
2459263Bank check1949-01-18
2357444Statistical record1944-09-05
2195860Control card blank1940-04-02
2185696Marker for filing systems1940-01-02