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ES109946A1 - Improvements in automatic or semiautomatic telephone systems. - Google Patents

Improvements in automatic or semiautomatic telephone systems.

Info

Publication number
ES109946A1
ES109946A1 ES109946A ES109946A ES109946A1 ES 109946 A1 ES109946 A1 ES 109946A1 ES 109946 A ES109946 A ES 109946A ES 109946 A ES109946 A ES 109946A ES 109946 A1 ES109946 A1 ES 109946A1
Authority
ES
Spain
Prior art keywords
automatic
telephone systems
semiautomatic telephone
semiautomatic
systems
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
ES109946A
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 ES109946A priority Critical patent/ES109946A1/en
Publication of ES109946A1 publication Critical patent/ES109946A1/en
Expired legal-status Critical Current

Links

ES109946A 1928-10-31 1928-10-31 Improvements in automatic or semiautomatic telephone systems. Expired ES109946A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES109946A ES109946A1 (en) 1928-10-31 1928-10-31 Improvements in automatic or semiautomatic telephone systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES109946A ES109946A1 (en) 1928-10-31 1928-10-31 Improvements in automatic or semiautomatic telephone systems.

Publications (1)

Publication Number Publication Date
ES109946A1 true ES109946A1 (en) 1928-12-01

Family

ID=65571045

Family Applications (1)

Application Number Title Priority Date Filing Date
ES109946A Expired ES109946A1 (en) 1928-10-31 1928-10-31 Improvements in automatic or semiautomatic telephone systems.

Country Status (1)

Country Link
ES (1) ES109946A1 (en)

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