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FR551898A - Superimposed service line - Google Patents

Superimposed service line

Info

Publication number
FR551898A
FR551898A FR551898DA FR551898A FR 551898 A FR551898 A FR 551898A FR 551898D A FR551898D A FR 551898DA FR 551898 A FR551898 A FR 551898A
Authority
FR
France
Prior art keywords
service line
superimposed
superimposed service
line
service
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR551898A publication Critical patent/FR551898A/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Meter Arrangements (AREA)
FR551898D 1921-05-25 1922-05-22 Superimposed service line Expired FR551898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US472478A US1501235A (en) 1921-05-25 1921-05-25 Telephone trunk circuits

Publications (1)

Publication Number Publication Date
FR551898A true FR551898A (en) 1923-04-16

Family

ID=23875645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR551898D Expired FR551898A (en) 1921-05-25 1922-05-22 Superimposed service line

Country Status (2)

Country Link
US (1) US1501235A (en)
FR (1) FR551898A (en)

Also Published As

Publication number Publication date
US1501235A (en) 1924-07-15

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