ES112613A1 - Sistema de transmisión telefónica. - Google Patents

Sistema de transmisión telefónica.

Info

Publication number
ES112613A1
ES112613A1 ES112613A ES112613A ES112613A1 ES 112613 A1 ES112613 A1 ES 112613A1 ES 112613 A ES112613 A ES 112613A ES 112613 A ES112613 A ES 112613A ES 112613 A1 ES112613 A1 ES 112613A1
Authority
ES
Spain
Prior art keywords
transmission system
telephone transmission
telephone
transmission
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
ES112613A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Priority to ES112613A priority Critical patent/ES112613A1/es
Publication of ES112613A1 publication Critical patent/ES112613A1/es
Expired legal-status Critical Current

Links

ES112613A 1929-04-15 1929-04-15 Sistema de transmisión telefónica. Expired ES112613A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES112613A ES112613A1 (es) 1929-04-15 1929-04-15 Sistema de transmisión telefónica.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES112613A ES112613A1 (es) 1929-04-15 1929-04-15 Sistema de transmisión telefónica.

Publications (1)

Publication Number Publication Date
ES112613A1 true ES112613A1 (es) 1929-07-01

Family

ID=65573663

Family Applications (1)

Application Number Title Priority Date Filing Date
ES112613A Expired ES112613A1 (es) 1929-04-15 1929-04-15 Sistema de transmisión telefónica.

Country Status (1)

Country Link
ES (1) ES112613A1 (es)

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