FR548587A - - Google Patents

Info

Publication number
FR548587A
FR548587A FR548587DA FR548587A FR 548587 A FR548587 A FR 548587A FR 548587D A FR548587D A FR 548587DA FR 548587 A FR548587 A FR 548587A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR548587A publication Critical patent/FR548587A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR548587D 1918-04-26 Expired FR548587A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR27576T 1918-04-26

Publications (1)

Publication Number Publication Date
FR548587A true FR548587A (zh) 1923-01-15

Family

ID=8665874

Family Applications (2)

Application Number Title Priority Date Filing Date
FR548587D Expired FR548587A (zh) 1918-04-26
FR27576D Expired FR27576E (fr) 1918-04-26 1918-04-26 Perfectionnements aux systèmes téléphoniques automatiques

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR27576D Expired FR27576E (fr) 1918-04-26 1918-04-26 Perfectionnements aux systèmes téléphoniques automatiques

Country Status (2)

Country Link
US (1) US1356010A (zh)
FR (2) FR27576E (zh)

Also Published As

Publication number Publication date
FR27576E (fr) 1924-07-31
US1356010A (en) 1920-10-19

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