FR1001468A - Système de commutation automatique de répéteurs téléphoniques - Google Patents

Système de commutation automatique de répéteurs téléphoniques

Info

Publication number
FR1001468A
FR1001468A FR1001468DA FR1001468A FR 1001468 A FR1001468 A FR 1001468A FR 1001468D A FR1001468D A FR 1001468DA FR 1001468 A FR1001468 A FR 1001468A
Authority
FR
France
Prior art keywords
switching system
automatic switching
telephone repeater
repeater 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
English (en)
Inventor
Francois Le Guen
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 filed Critical
Application granted granted Critical
Publication of FR1001468A publication Critical patent/FR1001468A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FR1001468D 1946-05-15 1946-05-15 Système de commutation automatique de répéteurs téléphoniques Expired FR1001468A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR838623X 1946-05-15

Publications (1)

Publication Number Publication Date
FR1001468A true FR1001468A (fr) 1952-02-25

Family

ID=9299120

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1001468D Expired FR1001468A (fr) 1946-05-15 1946-05-15 Système de commutation automatique de répéteurs téléphoniques

Country Status (2)

Country Link
DE (1) DE838623C (fr)
FR (1) FR1001468A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6027145A (en) * 1994-10-04 2000-02-22 Nippon Steel Corporation Joint for steel pipe having high galling resistance and surface treatment method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6027145A (en) * 1994-10-04 2000-02-22 Nippon Steel Corporation Joint for steel pipe having high galling resistance and surface treatment method thereof

Also Published As

Publication number Publication date
DE838623C (de) 1952-05-12

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