FR726007A - Improvements to automatic telephone central offices - Google Patents

Improvements to automatic telephone central offices

Info

Publication number
FR726007A
FR726007A FR726007DA FR726007A FR 726007 A FR726007 A FR 726007A FR 726007D A FR726007D A FR 726007DA FR 726007 A FR726007 A FR 726007A
Authority
FR
France
Prior art keywords
automatic telephone
central offices
telephone central
offices
automatic
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR726007A publication Critical patent/FR726007A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
FR726007D 1930-10-27 1931-10-27 Improvements to automatic telephone central offices Expired FR726007A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE726007X 1930-10-27
SE591421X 1930-10-27

Publications (1)

Publication Number Publication Date
FR726007A true FR726007A (en) 1932-05-21

Family

ID=32965060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726007D Expired FR726007A (en) 1930-10-27 1931-10-27 Improvements to automatic telephone central offices

Country Status (2)

Country Link
DE (1) DE591421C (en)
FR (1) FR726007A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE503597A (en) * 1950-06-16

Also Published As

Publication number Publication date
DE591421C (en) 1934-01-20

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