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Title:
Coin channel plate for telephone toll apparatus
United States Patent 1966413
Inventors:
Long, George A.
Publication Date:
07/10/1934
Export Citation:
Click for automatic bibliography generation
Assignee:
GRAY TELEPHONE PAY STATION CO
Primary Class:
194/203
Other Classes:
116/67R
International Classes:
G07F1/04
;
G07F1/00
View Patent Images:
Download PDF 1966413
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