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United States Patent 2659171

Inventors:
Hill, Eldon J.
Publication Date:
11/17/1953
Assignee:
BURDICK BARON COMPANY
Primary Class:
Other Classes:
427/282
International Classes:
G09F7/16; G09F7/00
View Patent Images:
US Patent References:
0807198N/A
0769139N/A