FR1014565A - Semi-automatic telephone system - Google Patents

Semi-automatic telephone system

Info

Publication number
FR1014565A
FR1014565A FR1014565DA FR1014565A FR 1014565 A FR1014565 A FR 1014565A FR 1014565D A FR1014565D A FR 1014565DA FR 1014565 A FR1014565 A FR 1014565A
Authority
FR
France
Prior art keywords
semi
telephone system
automatic telephone
automatic
telephone
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
Henri Stoeri
M G Bindler
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1014565A publication Critical patent/FR1014565A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-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)
FR1014565D 1945-03-13 1947-09-05 Semi-automatic telephone system Expired FR1014565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1014565X 1945-03-13

Publications (1)

Publication Number Publication Date
FR1014565A true FR1014565A (en) 1952-08-19

Family

ID=4552649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1014565D Expired FR1014565A (en) 1945-03-13 1947-09-05 Semi-automatic telephone system

Country Status (2)

Country Link
DE (1) DE898764C (en)
FR (1) FR1014565A (en)

Families Citing this family (2)

* 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
DE1032336B (en) * 1956-12-29 1958-06-19 Siemens Ag Circuit arrangement for Fernaemter in telecommunications, especially telephone systems

Also Published As

Publication number Publication date
DE898764C (en) 1953-12-03

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