|
US3654394A
(en)
|
|
Field effect transistor switch, particularly for multiplexing
|
|
US3138759A
(en)
|
|
Pulse spacing detection circuit
|
|
SE447186B
(sv)
|
|
Forfarande och anordning for detektering av ett digitalt kodordsmeddelande
|
|
SE421355B
(sv)
|
|
Digital databehandlingsanordning speciellt for jernvegssekerhetssystem
|
|
SE181765C1
(enExample)
|
|
|
|
US3368200A
(en)
|
|
Signal switching apparatus with interlock circuitry
|
|
US2976520A
(en)
|
|
Matrix selecting network
|
|
US2880331A
(en)
|
|
Time controlled signal discriminator circuit
|
|
US4000375A
(en)
|
|
Automatic call transfer circuit for a plurality of telephones
|
|
US2951951A
(en)
|
|
Electric gating and the like
|
|
US2935735A
(en)
|
|
Magnetic control systems
|
|
US2964735A
(en)
|
|
Electronic selector circuit
|
|
US3719832A
(en)
|
|
Time division multiplexer using charge storage diode line circuits
|
|
USRE25139E
(en)
|
|
faulkner |
|
US3402392A
(en)
|
|
Time division multiplex matrix data transfer system having transistor cross points
|
|
US3182204A
(en)
|
|
Tunnel diode logic circuit
|
|
US3063016A
(en)
|
|
Binary counting circuits
|
|
US2810098A
(en)
|
|
High-speed hunting circuits
|
|
US2724743A
(en)
|
|
Electronic register translators
|
|
US3551888A
(en)
|
|
Pulse distributor for time-sharing systems
|
|
US3927365A
(en)
|
|
Switch operating device
|
|
GB1113234A
(en)
|
|
Improvements relating to automatic telecommunication switching systems
|
|
US3417292A
(en)
|
|
Transistorized electronic relay
|
|
US3119902A
(en)
|
|
Telephone selector systems
|
|
US3389228A
(en)
|
|
Controlled latching semiconductor switch and switching network
|