GB447758A - Improvements in or relating to telephony - Google Patents

Improvements in or relating to telephony

Info

Publication number
GB447758A
GB447758A GB33263/34A GB3326334A GB447758A GB 447758 A GB447758 A GB 447758A GB 33263/34 A GB33263/34 A GB 33263/34A GB 3326334 A GB3326334 A GB 3326334A GB 447758 A GB447758 A GB 447758A
Authority
GB
United Kingdom
Prior art keywords
resistance
repeater
valve
retroaction
nov
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
GB33263/34A
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Publication of GB447758A publication Critical patent/GB447758A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C39/00—Aircraft not otherwise provided for
    • B64C39/10—All-wing aircraft
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB33263/34A 1933-11-29 1934-11-19 Improvements in or relating to telephony Expired GB447758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL447758X 1933-11-29

Publications (1)

Publication Number Publication Date
GB447758A true GB447758A (en) 1936-05-19

Family

ID=19786287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33263/34A Expired GB447758A (en) 1933-11-29 1934-11-19 Improvements in or relating to telephony

Country Status (4)

Country Link
BE (1) BE406383A (ko)
FR (1) FR782964A (ko)
GB (1) GB447758A (ko)
NL (2) NL36874C (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535835A1 (fr) * 1982-11-10 1984-05-11 Mannesmann Ag Four a arc basculant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535835A1 (fr) * 1982-11-10 1984-05-11 Mannesmann Ag Four a arc basculant

Also Published As

Publication number Publication date
NL67603C (ko)
BE406383A (ko)
NL36874C (ko)
FR782964A (fr) 1935-07-05

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