ES170226A1 - IMPROVEMENTS IN TELEPHONE SYSTEMS - Google Patents

IMPROVEMENTS IN TELEPHONE SYSTEMS

Info

Publication number
ES170226A1
ES170226A1 ES170226A ES170226A ES170226A1 ES 170226 A1 ES170226 A1 ES 170226A1 ES 170226 A ES170226 A ES 170226A ES 170226 A ES170226 A ES 170226A ES 170226 A1 ES170226 A1 ES 170226A1
Authority
ES
Spain
Prior art keywords
telephone systems
telephone
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
ES170226A
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
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 ES170226A priority Critical patent/ES170226A1/en
Publication of ES170226A1 publication Critical patent/ES170226A1/en
Expired legal-status Critical Current

Links

ES170226A 1945-06-16 1945-06-16 IMPROVEMENTS IN TELEPHONE SYSTEMS Expired ES170226A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES170226A ES170226A1 (en) 1945-06-16 1945-06-16 IMPROVEMENTS IN TELEPHONE SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES170226A ES170226A1 (en) 1945-06-16 1945-06-16 IMPROVEMENTS IN TELEPHONE SYSTEMS

Publications (1)

Publication Number Publication Date
ES170226A1 true ES170226A1 (en) 1945-08-01

Family

ID=65766303

Family Applications (1)

Application Number Title Priority Date Filing Date
ES170226A Expired ES170226A1 (en) 1945-06-16 1945-06-16 IMPROVEMENTS IN TELEPHONE SYSTEMS

Country Status (1)

Country Link
ES (1) ES170226A1 (en)

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