ES149617A1 - Sistemas de cambio de comunicación telefónica - Google Patents

Sistemas de cambio de comunicación telefónica

Info

Publication number
ES149617A1
ES149617A1 ES149617A ES149617A ES149617A1 ES 149617 A1 ES149617 A1 ES 149617A1 ES 149617 A ES149617 A ES 149617A ES 149617 A ES149617 A ES 149617A ES 149617 A1 ES149617 A1 ES 149617A1
Authority
ES
Spain
Prior art keywords
systems
change
telephone communication
telephone
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES149617A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA, Standard Electrica SA filed Critical Alcatel Espana SA
Priority to ES149617A priority Critical patent/ES149617A1/es
Publication of ES149617A1 publication Critical patent/ES149617A1/es
Expired legal-status Critical Current

Links

ES149617A 1940-06-05 1940-06-05 Sistemas de cambio de comunicación telefónica Expired ES149617A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES149617A ES149617A1 (es) 1940-06-05 1940-06-05 Sistemas de cambio de comunicación telefónica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES149617A ES149617A1 (es) 1940-06-05 1940-06-05 Sistemas de cambio de comunicación telefónica

Publications (1)

Publication Number Publication Date
ES149617A1 true ES149617A1 (es) 1942-06-01

Family

ID=65640573

Family Applications (1)

Application Number Title Priority Date Filing Date
ES149617A Expired ES149617A1 (es) 1940-06-05 1940-06-05 Sistemas de cambio de comunicación telefónica

Country Status (1)

Country Link
ES (1) ES149617A1 (es)

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