Title:
Changeable display device
United States Patent 3387397


Inventors:
Buchanan, William V.
Muir, Richard D.
Application Number:
US50359565A
Publication Date:
06/11/1968
Filing Date:
10/23/1965
Assignee:
WILLIAM V. BUCHANAN
RICHARD D. MUIR
Primary Class:
International Classes:
G09F7/02
View Patent Images:
US Patent References:
1787308Holder for display strips1930-12-30
1285760N/A1918-11-26
Foreign References:
FR671450A1929-12-12
GB334210A1930-08-28