Reading machine
United States Patent 2933246
US Patent References:
Light sensitive device
- - 2131911
Photoelectric controlling device
- - 2211320
Reading machine
- - 2240546
Transmission system for statistical data
- - 2302009
Oscillographic integrator
- - 2705901
Light sensitive device
- - 2131911
Photoelectric controlling device
- - 2211320
Reading machine
- - 2240546
Transmission system for statistical data
- - 2302009
Oscillographic integrator
- - 2705901
Inventors:
Jacob, Rabinow
Publication Date:
04/19/1960
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Assignee:
Libman, Max L.
Primary Class:
International Classes:
G06K9/74