GB350508A - Improvements in or relating to printing telegraph exchange systems - Google Patents

Improvements in or relating to printing telegraph exchange systems

Info

Publication number
GB350508A
GB350508A GB435830A GB435830A GB350508A GB 350508 A GB350508 A GB 350508A GB 435830 A GB435830 A GB 435830A GB 435830 A GB435830 A GB 435830A GB 350508 A GB350508 A GB 350508A
Authority
GB
United Kingdom
Prior art keywords
switch
contact
arm
selector
line
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
GB435830A
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 claimed from DES89137D external-priority patent/DE606542C/de
Priority claimed from DES91129D external-priority patent/DE607873C/de
Priority claimed from DES95080D external-priority patent/DE649978C/de
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB350508A publication Critical patent/GB350508A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/06—Answer-back mechanisms or circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Interface Circuits In Exchanges (AREA)
GB435830A 1928-12-28 1930-02-08 Improvements in or relating to printing telegraph exchange systems Expired GB350508A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DES89137D DE606542C (de) 1928-12-28 1928-12-28 Fernschreibanlage nach dem Start-Stop-Prinzip mit Einrichtungen zur selbsttaetigen Rueckmeldung eines Teilnehmerkennzeichens
DES91129D DE607873C (de) 1928-12-28 1929-04-15 Rueckmeldeeinrichtung fuer mechanisch wirkende Fernschreiber
DES95080D DE649978C (de) 1929-11-19 1929-11-19 Schaltungsanordnung fuer Fernschreibanlagen mit Einrichtungen zur selbsttaetigen Rueckmeldung von Teilnehmerkennzeichen

Publications (1)

Publication Number Publication Date
GB350508A true GB350508A (en) 1931-06-08

Family

ID=27212866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB435830A Expired GB350508A (en) 1928-12-28 1930-02-08 Improvements in or relating to printing telegraph exchange systems

Country Status (5)

Country Link
BE (1) BE366551A (enrdf_load_stackoverflow)
CH (1) CH149259A (enrdf_load_stackoverflow)
FR (1) FR687345A (enrdf_load_stackoverflow)
GB (1) GB350508A (enrdf_load_stackoverflow)
NL (1) NL41909C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH149259A (de) 1931-08-31
BE366551A (enrdf_load_stackoverflow) 1929-01-31
NL41909C (enrdf_load_stackoverflow) 1937-11-15
FR687345A (fr) 1930-08-07

Similar Documents

Publication Publication Date Title
GB350508A (en) Improvements in or relating to printing telegraph exchange systems
US1864082A (en) Telephone exchange system
US1870997A (en) Printing telegraph exchange system
US1509691A (en) Multioffice telephone system
US1795350A (en) Service observation in telephone systems using call indicators
US1613613A (en) Telephone-exchange system
US1504258A (en) Telephone-exchange system
US1880722A (en) Call distributing system for concentration circuits
US1563599A (en) Telephone-exchange system
US1330200A (en) lundell
US1732186A (en) wicks
US1475590A (en) Mttltioitice telephone system
US1537109A (en) Telephone system
US2809236A (en) Telephone apparatus
US1808574A (en) Telephone system
US2897355A (en) Diode coincidence gate
US2574532A (en) Reverting call circuit
US2100517A (en) Automatic telephone switch
USRE21681E (en) Selective telegraph system
US1333027A (en) Telephone-switch-controlling system
US1556761A (en) Trunk circuits
US1492655A (en) Telephone system
US1504268A (en) Machine-switching telephone-exchange system
US1410766A (en) Telephone-exchange system
US1793582A (en) Telephone system