GB191210444A - Improvements in Impulse Transmitters for Semi-automatic Telephone Systems. - Google Patents

Improvements in Impulse Transmitters for Semi-automatic Telephone Systems.

Info

Publication number
GB191210444A
GB191210444A GB191210444DA GB191210444A GB 191210444 A GB191210444 A GB 191210444A GB 191210444D A GB191210444D A GB 191210444DA GB 191210444 A GB191210444 A GB 191210444A
Authority
GB
United Kingdom
Prior art keywords
relay
energized
contact
relays
circuit
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)
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 DENDAT258237D priority Critical patent/DE258237C/de
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of GB191210444A publication Critical patent/GB191210444A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Relay Circuits (AREA)
GB191210444D 1911-05-02 1911-05-02 Improvements in Impulse Transmitters for Semi-automatic Telephone Systems. Expired GB191210444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DENDAT258237D DE258237C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1911-05-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191210444X 1911-05-02

Publications (1)

Publication Number Publication Date
GB191210444A true GB191210444A (en) 1912-11-07

Family

ID=32337208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191210444D Expired GB191210444A (en) 1911-05-02 1911-05-02 Improvements in Impulse Transmitters for Semi-automatic Telephone Systems.

Country Status (2)

Country Link
DE (1) DE286532C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB191210444A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
DE286532C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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