Character analyzing systems
United States Patent 2751433
US Patent References:
Means for preparing control sheets
- - 2067183
Transmitting apparatus
- - 2183559
Apparatus for preparing statistical records
- - 2258106
Magnetic recording apparatus
- - 2359617
Printing telegraph system and apparatus
- - 2540287
Means for preparing control sheets
- - 2067183
Transmitting apparatus
- - 2183559
Apparatus for preparing statistical records
- - 2258106
Magnetic recording apparatus
- - 2359617
Printing telegraph system and apparatus
- - 2540287
Inventors:
Linger, Roland A.
Publication Date:
06/19/1956
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Assignee:
RCA CORP
Primary Class:
Other Classes:
400/118.300, 361/191, 360/4, 178/17D, 361/143, 400/105, 246/2R, 101/389.100
International Classes:
H04L21/00
US Patent References: