ES179902A1 - IMPROVEMENTS IN KEY SIGNALING DEVICES - Google Patents

IMPROVEMENTS IN KEY SIGNALING DEVICES

Info

Publication number
ES179902A1
ES179902A1 ES0179902A ES179902A ES179902A1 ES 179902 A1 ES179902 A1 ES 179902A1 ES 0179902 A ES0179902 A ES 0179902A ES 179902 A ES179902 A ES 179902A ES 179902 A1 ES179902 A1 ES 179902A1
Authority
ES
Spain
Prior art keywords
signaling devices
key signaling
key
enhancements
substituting
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
ES0179902A
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
Publication of ES179902A1 publication Critical patent/ES179902A1/en
Expired legal-status Critical Current

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Abstract

Mejoras en dispositivos de señalización por clave por las que se propone el empleo de disposiciones de numeración por clave en los sistemas de comunicaciones telefónicas en lugar de un sistema decimal sustituyendo los mismos que componen la señal que ha de enviarse por una combinación de un número menor de señales.Enhancements in key signaling devices that propose the use of key numbering arrangements in telephone communication systems instead of a decimal system, substituting the same that make up the signal to be sent by a combination of a smaller number of signals.

ES0179902A 1946-05-28 1947-09-27 IMPROVEMENTS IN KEY SIGNALING DEVICES Expired ES179902A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR516026 1946-05-28

Publications (1)

Publication Number Publication Date
ES179902A1 true ES179902A1 (en) 1947-11-01

Family

ID=38463240

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0179902A Expired ES179902A1 (en) 1946-05-28 1947-09-27 IMPROVEMENTS IN KEY SIGNALING DEVICES

Country Status (1)

Country Link
ES (1) ES179902A1 (en)

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