FR56775E - Installations téléphoniques intérieures à postes - Google Patents

Installations téléphoniques intérieures à postes

Info

Publication number
FR56775E
FR56775E FR56775DA FR56775E FR 56775 E FR56775 E FR 56775E FR 56775D A FR56775D A FR 56775DA FR 56775 E FR56775 E FR 56775E
Authority
FR
France
Prior art keywords
stations
telephone systems
indoor telephone
indoor
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
Other languages
English (en)
Inventor
Robert-Emile Mayer
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 filed Critical
Application granted granted Critical
Publication of FR56775E publication Critical patent/FR56775E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR56775D 1946-10-03 1947-04-25 Installations téléphoniques intérieures à postes Expired FR56775E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002451T 1946-10-03

Publications (1)

Publication Number Publication Date
FR56775E true FR56775E (fr) 1952-10-06

Family

ID=9562181

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1002451D Expired FR1002451A (fr) 1946-10-03 1946-10-03 Installations téléphoniques intérieures à postes
FR56775D Expired FR56775E (fr) 1946-10-03 1947-04-25 Installations téléphoniques intérieures à postes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1002451D Expired FR1002451A (fr) 1946-10-03 1946-10-03 Installations téléphoniques intérieures à postes

Country Status (1)

Country Link
FR (2) FR1002451A (fr)

Also Published As

Publication number Publication date
FR1002451A (fr) 1952-03-06

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