GB424534A - Selector arrangement for direct call telephone systems - Google Patents

Selector arrangement for direct call telephone systems

Info

Publication number
GB424534A
GB424534A GB8575/34A GB857534A GB424534A GB 424534 A GB424534 A GB 424534A GB 8575/34 A GB8575/34 A GB 8575/34A GB 857534 A GB857534 A GB 857534A GB 424534 A GB424534 A GB 424534A
Authority
GB
United Kingdom
Prior art keywords
dial
selector
key
march
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
GB8575/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB424534A publication Critical patent/GB424534A/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
    • H04M1/52—Arrangements wherein a dial or the like is mechanically coupled to a line selector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Mobile Radio Communication Systems (AREA)
GB8575/34A 1933-03-29 1934-03-19 Selector arrangement for direct call telephone systems Expired GB424534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH424534X 1933-03-29

Publications (1)

Publication Number Publication Date
GB424534A true GB424534A (en) 1935-02-22

Family

ID=4514787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8575/34A Expired GB424534A (en) 1933-03-29 1934-03-19 Selector arrangement for direct call telephone systems

Country Status (6)

Country Link
US (1) US1992389A (OSRAM)
CH (1) CH171887A (OSRAM)
DE (1) DE621714C (OSRAM)
FR (1) FR775560A (OSRAM)
GB (1) GB424534A (OSRAM)
NL (1) NL39596C (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530943A (en) * 1947-07-03 1950-11-21 Bell Telephone Labor Inc Intercommunicating telephone system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE462287A (OSRAM) * 1945-01-17
DE856624C (de) * 1945-12-14 1952-11-24 Erik Gunnar Valfrid Erlandsson Schaltungsanordnung fuer Fernmeldeanlagen mit Waehlerbetrieb, insbesondere fuer Fernsprechanlagen
US2617886A (en) * 1948-12-30 1952-11-11 Automatic Elect Lab Multivoltage train telephone system
NL91183C (OSRAM) * 1954-01-19
DE973103C (de) * 1954-05-29 1959-12-03 Richard Bosse & Co Fernsprecheinrichtung mit Waehlscheibe und Linienwaehler
DE1219536B (de) * 1963-05-29 1966-06-23 Standard Elektrik Lorenz Ag Reihenanlage mit tonfrequenter Tastwahl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530943A (en) * 1947-07-03 1950-11-21 Bell Telephone Labor Inc Intercommunicating telephone system

Also Published As

Publication number Publication date
DE621714C (de) 1935-11-13
FR775560A (fr) 1935-01-04
NL39596C (OSRAM)
CH171887A (de) 1934-09-15
US1992389A (en) 1935-02-26

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