FR54653E - Long distance telephone offices not using tricords - Google Patents

Long distance telephone offices not using tricords

Info

Publication number
FR54653E
FR54653E FR54653DA FR54653E FR 54653 E FR54653 E FR 54653E FR 54653D A FR54653D A FR 54653DA FR 54653 E FR54653 E FR 54653E
Authority
FR
France
Prior art keywords
tricords
long distance
distance telephone
telephone offices
offices
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
French (fr)
Inventor
Andre-Jean Henquet
Roger-Marcel Mauge
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR54653E publication Critical patent/FR54653E/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/60Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
FR54653D 1942-11-13 1943-09-22 Long distance telephone offices not using tricords Expired FR54653E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872370X 1942-11-13

Publications (1)

Publication Number Publication Date
FR54653E true FR54653E (en) 1950-07-27

Family

ID=9358866

Family Applications (2)

Application Number Title Priority Date Filing Date
FR960713D Expired FR960713A (en) 1942-11-13
FR54653D Expired FR54653E (en) 1942-11-13 1943-09-22 Long distance telephone offices not using tricords

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR960713D Expired FR960713A (en) 1942-11-13

Country Status (2)

Country Link
DE (1) DE872370C (en)
FR (2) FR54653E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018928B (en) * 1956-11-13 1957-11-07 Merk Ag Telefonbau Friedrich Circuit arrangement for hand-operated switching devices for long-distance telephony

Also Published As

Publication number Publication date
DE872370C (en) 1953-03-30
FR960713A (en) 1950-04-22

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