Title:
In-and-out register and paging system
United States Patent 2838749
US Patent References:
Signaling system
- - 1911949

Station selection
- - 2152010

Magnetic data storage system
- - 2611813

Paging system
- - 2612551

Hospital service register installation
- - 2682654


Inventors:
Hugh, Rumler
Hughes, James A.
Publication Date:
06/10/1958
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Assignee:
SPERTI FARADAY INC
Primary Class:
340/7.310
Other Classes:
340/7.610, 178/4.10R
International Classes:
G08B3/10; G08B3/00