GB436624A - Improvements in and relating to telegraphic trunk switching systems - Google Patents

Improvements in and relating to telegraphic trunk switching systems

Info

Publication number
GB436624A
GB436624A GB4370/35A GB437035A GB436624A GB 436624 A GB436624 A GB 436624A GB 4370/35 A GB4370/35 A GB 4370/35A GB 437035 A GB437035 A GB 437035A GB 436624 A GB436624 A GB 436624A
Authority
GB
United Kingdom
Prior art keywords
telephone
over
relay
telegraphic
exchange
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
GB4370/35A
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
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB436624A publication Critical patent/GB436624A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
GB4370/35A 1934-02-09 1935-02-11 Improvements in and relating to telegraphic trunk switching systems Expired GB436624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE436624X 1934-02-09

Publications (1)

Publication Number Publication Date
GB436624A true GB436624A (en) 1935-10-15

Family

ID=6506921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4370/35A Expired GB436624A (en) 1934-02-09 1935-02-11 Improvements in and relating to telegraphic trunk switching systems

Country Status (5)

Country Link
BE (1) BE407758A (enrdf_load_stackoverflow)
DK (1) DK53547C (enrdf_load_stackoverflow)
FR (1) FR785950A (enrdf_load_stackoverflow)
GB (1) GB436624A (enrdf_load_stackoverflow)
NL (1) NL42520C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DK53547C (da) 1937-09-06
BE407758A (enrdf_load_stackoverflow)
FR785950A (fr) 1935-08-22
NL42520C (enrdf_load_stackoverflow)

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