Title:
Automatic direct paging system
Document Type and Number:
United States Patent 2985719

Inventors:
Becker Jr. I, Howard
Publication Date:
05/23/1961
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Assignee:
GEN ELECTRIC
Primary Class:
340/311.200
International Classes:
G08B3/10; G08B3/00
US Patent References:
1906646Automatic stock quotation announcing system
2397881Signaling system
2410520Telephone system
2804501Voice warning systems


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