|
US3549846A
|
|
Releasable fastener for actuator element of snap switch,or the like
|
|
US3483553A
|
|
Keyboard input system
|
|
US3462739A
|
|
Variable rate system for handling security price information
|
|
US3432620A
|
|
Dial long line circuit
|
|
US3414887A
|
|
Memory transfer between magnetic tape and delay line
|
|
US3371277A
|
|
Noise control in composite transmission systems
|
|
US3274355A
|
|
Cam operated snap switch having wire contacts
|
|
US3371162A
|
|
System for transmitting digital data via telephone lines utilizing a telephone as the input
|
|
US3312952A
|
|
High speed line splitter for market quotation apparatus
|
|
US3320426A
|
|
Photoelectric commutator for selectively energizing one or more of a plurality of loads
|
|
US3297927A
|
|
Controller for display board
|
|
US3317686A
|
|
Selector for display board
|
|
US3296597A
|
|
Market quotation apparatus
|
|
GB1023963A
|
|
Information transmission system for use with an a.m. radio transmitter
|
|
US3249919A
|
|
Securities quotation apparatus
|
|
US3266019A
|
|
Display board having concentric cylinder indicating elements
|
|
US3160812A
|
|
Composite transmission system utilizing phase shift and amplitude modulation
|
|
US3082402A
|
|
Securities quotation apparatus
|
|
US3064545A
|
|
Printer
|
|
US3159818A
|
|
Data storage system with selective readout
|
