GB464109A - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
GB464109A
GB464109A GB2812835A GB2812835A GB464109A GB 464109 A GB464109 A GB 464109A GB 2812835 A GB2812835 A GB 2812835A GB 2812835 A GB2812835 A GB 2812835A GB 464109 A GB464109 A GB 464109A
Authority
GB
United Kingdom
Prior art keywords
relay
circuit
coin
switch
call
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
GB2812835A
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.)
CAMILLE LARDOT
Original Assignee
CAMILLE LARDOT
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
Priority to NL47275D priority Critical patent/NL47275C/xx
Priority to BE416045D priority patent/BE416045A/xx
Application filed by CAMILLE LARDOT filed Critical CAMILLE LARDOT
Priority to GB2812835A priority patent/GB464109A/en
Priority to CH206316D priority patent/CH206316A/de
Priority to DEI3260D priority patent/DE890193C/de
Publication of GB464109A publication Critical patent/GB464109A/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
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Prepayment Telephone Systems (AREA)
GB2812835A 1935-10-11 1935-10-11 Improvements in or relating to electric signalling systems Expired GB464109A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL47275D NL47275C (enrdf_load_stackoverflow) 1935-10-11
BE416045D BE416045A (enrdf_load_stackoverflow) 1935-10-11
GB2812835A GB464109A (en) 1935-10-11 1935-10-11 Improvements in or relating to electric signalling systems
CH206316D CH206316A (de) 1935-10-11 1936-10-10 Elektrische Signalisierungseinrichtung.
DEI3260D DE890193C (de) 1935-10-11 1936-10-13 Schaltungsanordnung fuer Fernmeldeanlagen, in denen Sendestellen mit ihren Empfangsstellen ueber eine zweiadrige Verbindungsleitung im Simultan- und Schleifenbetrieb verbunden sind

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2812835A GB464109A (en) 1935-10-11 1935-10-11 Improvements in or relating to electric signalling systems

Publications (1)

Publication Number Publication Date
GB464109A true GB464109A (en) 1937-04-12

Family

ID=10270703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2812835A Expired GB464109A (en) 1935-10-11 1935-10-11 Improvements in or relating to electric signalling systems

Country Status (3)

Country Link
BE (1) BE416045A (enrdf_load_stackoverflow)
GB (1) GB464109A (enrdf_load_stackoverflow)
NL (1) NL47275C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114834507A (zh) * 2022-04-14 2022-08-02 北京华元智通科技有限公司 一种用于ibp按钮的远程监控管理系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114834507A (zh) * 2022-04-14 2022-08-02 北京华元智通科技有限公司 一种用于ibp按钮的远程监控管理系统
CN114834507B (zh) * 2022-04-14 2023-08-22 北京华元智通科技有限公司 一种用于ibp按钮的远程监控管理系统

Also Published As

Publication number Publication date
BE416045A (enrdf_load_stackoverflow)
NL47275C (enrdf_load_stackoverflow)

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