Telewriting apparatus
United States Patent 3089918
US Patent References:
Light responsive displacement indicator
- - 2455532
Electronic pointer for television images
- - 2487641
Position correcting means for trackwhile-scan channels
- - 2849707
Light responsive displacement indicator
- - 2455532
Electronic pointer for television images
- - 2487641
Position correcting means for trackwhile-scan channels
- - 2849707
Inventors:
Graham, Robert E.
Publication Date:
05/14/1963
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Export Citation:
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
345/181
International Classes:
G06F3/033