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BE426894A
(enrdf_load_html_response)
|
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BE427929A
(enrdf_load_html_response)
|
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BE428142A
(enrdf_load_html_response)
|
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SU7092A1
(ru)
|
|
Телефонное устройство
|
|
SU56358A1
(ru)
|
|
Устройство дл передачи об зательных дл выслушивани сообщений
|
|
BE398804A
(enrdf_load_html_response)
|
|
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BE429583A
(enrdf_load_html_response)
|
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SU180636A1
(ru)
|
|
Устройство соединительных линий между автоматическими телефонными станциями
|
|
Welch
|
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The author's reply to the discussion on “The signalling problems associated with register-controlled automatic telephone exchanges” |
|
US253957A
(en)
|
|
Telegraphic apparatus |
|
US1557609A
(en)
|
|
Printing-telegraph exchange system |
|
BE502093A
(enrdf_load_html_response)
|
|
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BE483742A
(enrdf_load_html_response)
|
|
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BE669357A
(enrdf_load_html_response)
|
|
|
|
BE470734A
(enrdf_load_html_response)
|
|
|
|
US1336098A
(en)
|
|
Telephone system
|
|
BE460754A
(enrdf_load_html_response)
|
|
|
|
BE391837A
(enrdf_load_html_response)
|
|
|
|
ES2351347T3
(es)
|
|
Procedimiento para establecer un enlace de telecomunicación con una conexión de abonado llamada de una red de telecomunicaciones.
|
|
ES2297674T3
(es)
|
|
Metodo de control de llamadas en redes de conmutacion por paquetes.
|
|
BE431819A
(enrdf_load_html_response)
|
|
|
|
DE753962C
(de)
|
|
Schaltungsanordnung fuer Telegrafenanlagen
|
|
CH121217A
(fr)
|
|
Circuit télégraphique.
|
|
GB329024A
(en)
|
|
Improvements in or relating to telephone systems
|
|
GB380479A
(en)
|
|
Improvements relating to telephone systems
|