ES116692A1 - Improvements in the systems of automatic and semiautomatic telephone exchanges. - Google Patents

Improvements in the systems of automatic and semiautomatic telephone exchanges.

Info

Publication number
ES116692A1
ES116692A1 ES116692A ES116692A ES116692A1 ES 116692 A1 ES116692 A1 ES 116692A1 ES 116692 A ES116692 A ES 116692A ES 116692 A ES116692 A ES 116692A ES 116692 A1 ES116692 A1 ES 116692A1
Authority
ES
Spain
Prior art keywords
automatic
systems
telephone exchanges
semiautomatic telephone
semiautomatic
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
ES116692A
Other languages
Spanish (es)
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
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 filed Critical Alcatel Espana SA
Priority to ES116692A priority Critical patent/ES116692A1/en
Publication of ES116692A1 publication Critical patent/ES116692A1/en
Expired legal-status Critical Current

Links

ES116692A 1930-01-31 1930-01-31 Improvements in the systems of automatic and semiautomatic telephone exchanges. Expired ES116692A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES116692A ES116692A1 (en) 1930-01-31 1930-01-31 Improvements in the systems of automatic and semiautomatic telephone exchanges.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES116692A ES116692A1 (en) 1930-01-31 1930-01-31 Improvements in the systems of automatic and semiautomatic telephone exchanges.

Publications (1)

Publication Number Publication Date
ES116692A1 true ES116692A1 (en) 1930-03-01

Family

ID=65577896

Family Applications (1)

Application Number Title Priority Date Filing Date
ES116692A Expired ES116692A1 (en) 1930-01-31 1930-01-31 Improvements in the systems of automatic and semiautomatic telephone exchanges.

Country Status (1)

Country Link
ES (1) ES116692A1 (en)

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