FR651967A - Connection arrangement for sub-central units in telephone systems with selector operation - Google Patents

Connection arrangement for sub-central units in telephone systems with selector operation

Info

Publication number
FR651967A
FR651967A FR651967DA FR651967A FR 651967 A FR651967 A FR 651967A FR 651967D A FR651967D A FR 651967DA FR 651967 A FR651967 A FR 651967A
Authority
FR
France
Prior art keywords
sub
connection arrangement
telephone systems
central units
selector operation
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)
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.)
Telephon Apparat Fabrik E Zwietusch and Co
Original Assignee
Telephon Apparat Fabrik E Zwietusch and Co
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 Telephon Apparat Fabrik E Zwietusch and Co filed Critical Telephon Apparat Fabrik E Zwietusch and Co
Application granted granted Critical
Publication of FR651967A publication Critical patent/FR651967A/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)
FR651967D 1928-03-30 1928-03-30 Connection arrangement for sub-central units in telephone systems with selector operation Expired FR651967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR651967T 1928-03-30

Publications (1)

Publication Number Publication Date
FR651967A true FR651967A (en) 1929-03-01

Family

ID=9004974

Family Applications (1)

Application Number Title Priority Date Filing Date
FR651967D Expired FR651967A (en) 1928-03-30 1928-03-30 Connection arrangement for sub-central units in telephone systems with selector operation

Country Status (1)

Country Link
FR (1) FR651967A (en)

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