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US3654394A
(en)
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Field effect transistor switch, particularly for multiplexing
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SE447186B
(sv)
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Forfarande och anordning for detektering av ett digitalt kodordsmeddelande
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GB963319A
(en)
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Electronic switching telephone system
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SE421355B
(sv)
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Digital databehandlingsanordning speciellt for jernvegssekerhetssystem
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SE181765C1
(enExample)
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US3368200A
(en)
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Signal switching apparatus with interlock circuitry
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US2976520A
(en)
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Matrix selecting network
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US3221107A
(en)
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Pbx-group hunting for electronic switching systems
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US2880331A
(en)
|
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Time controlled signal discriminator circuit
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SE457999B
(sv)
|
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Personsoekarmottagare
|
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US3719832A
(en)
|
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Time division multiplexer using charge storage diode line circuits
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USRE25139E
(en)
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faulkner |
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US3402392A
(en)
|
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Time division multiplex matrix data transfer system having transistor cross points
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US3182204A
(en)
|
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Tunnel diode logic circuit
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US3063016A
(en)
|
|
Binary counting circuits
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US2810098A
(en)
|
|
High-speed hunting circuits
|
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GB1013483A
(en)
|
|
Improvements in or relating to communication systems
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|
US3927365A
(en)
|
|
Switch operating device
|
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GB1113234A
(en)
|
|
Improvements relating to automatic telecommunication switching systems
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US3309535A
(en)
|
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Switching circuitry for semiconductive controlled rectifiers
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US3119902A
(en)
|
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Telephone selector systems
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US3389228A
(en)
|
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Controlled latching semiconductor switch and switching network
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US3356973A
(en)
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Reed relay switching networks
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US3056045A
(en)
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Electronic switching unit for the construction of information storage devices, counters and the like
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US3536847A
(en)
|
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Crosspoint operating circuit
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