GB228387A - Improvements in or in connection with telephonic repeating systems - Google Patents

Improvements in or in connection with telephonic repeating systems

Info

Publication number
GB228387A
GB228387A GB765824A GB765824A GB228387A GB 228387 A GB228387 A GB 228387A GB 765824 A GB765824 A GB 765824A GB 765824 A GB765824 A GB 765824A GB 228387 A GB228387 A GB 228387A
Authority
GB
United Kingdom
Prior art keywords
telephonic
connection
repeating
impedance
repeating systems
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
GB765824A
Other languages
English (en)
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.)
AT&T Inc
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB765824A priority Critical patent/GB228387A/en
Priority to NL26751A priority patent/NL16989C/xx
Priority to FR580294D priority patent/FR580294A/fr
Publication of GB228387A publication Critical patent/GB228387A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB765824A 1924-03-26 1924-03-26 Improvements in or in connection with telephonic repeating systems Expired GB228387A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB765824A GB228387A (en) 1924-03-26 1924-03-26 Improvements in or in connection with telephonic repeating systems
NL26751A NL16989C (enExample) 1924-03-26 1924-04-03
FR580294D FR580294A (fr) 1924-03-26 1924-04-18 Perfectionnements aux systèmes électriques de signalisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB765824A GB228387A (en) 1924-03-26 1924-03-26 Improvements in or in connection with telephonic repeating systems

Publications (1)

Publication Number Publication Date
GB228387A true GB228387A (en) 1925-02-05

Family

ID=9837325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB765824A Expired GB228387A (en) 1924-03-26 1924-03-26 Improvements in or in connection with telephonic repeating systems

Country Status (3)

Country Link
FR (1) FR580294A (enExample)
GB (1) GB228387A (enExample)
NL (1) NL16989C (enExample)

Also Published As

Publication number Publication date
FR580294A (fr) 1924-11-04
NL16989C (enExample) 1927-10-15

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