FR551126A - Improvements to selective telephone networks - Google Patents

Improvements to selective telephone networks

Info

Publication number
FR551126A
FR551126A FR551126DA FR551126A FR 551126 A FR551126 A FR 551126A FR 551126D A FR551126D A FR 551126DA FR 551126 A FR551126 A FR 551126A
Authority
FR
France
Prior art keywords
telephone networks
selective telephone
selective
networks
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
French (fr)
Inventor
Ruber Christopher Mil Hastings
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 FR551126A publication Critical patent/FR551126A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
FR551126D 1921-08-17 1921-08-30 Improvements to selective telephone networks Expired FR551126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2184721A GB193073A (en) 1921-08-17 1921-08-17 Improvements in or relating to party-line telephone systems

Publications (1)

Publication Number Publication Date
FR551126A true FR551126A (en) 1923-03-28

Family

ID=10169799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR551126D Expired FR551126A (en) 1921-08-17 1921-08-30 Improvements to selective telephone networks

Country Status (2)

Country Link
FR (1) FR551126A (en)
GB (1) GB193073A (en)

Also Published As

Publication number Publication date
GB193073A (en) 1923-02-19

Similar Documents

Publication Publication Date Title
FR27035E (en) Improvements to telephone transmitters
FR551126A (en) Improvements to selective telephone networks
FR540090A (en) Improvements to telephone networks
FR561429A (en) Improvements to telephone cables
FR553457A (en) Phone
FR556412A (en) Improvements to speaker phones
FR547572A (en) Improvements to telephone receivers
FR542433A (en) Improvements to phones
FR508334A (en) Improvements to telephone equipment
FR508443A (en) Improvements to telephone transmitters
FR571381A (en) Improvements to telephone receivers
FR585125A (en) Improvements to telephone headsets
FR555826A (en) Improvements to microphones for telephony, radiotelegraphy and apps
FR541706A (en) Selective microphone
FR535868A (en) Improvements to insulators
FR559341A (en) Improvements to seleno-radio-dosimeter
FR27158E (en) Improvements to radio-receivers
FR548289A (en) Telephone microphones
FR555546A (en) Improvements to telephone headsets
SU4304A1 (en) Telephone translate
FR531314A (en) Improvements to telephone translators
FR23769E (en) Improvements to telephone cables
FR528513A (en) Telephone equipment
FR547478A (en) Micro-telephone handset
FR25839E (en) Improvements to telephone receivers