GB685309A - Improvements in automatic telephone and like exchange systems - Google Patents

Improvements in automatic telephone and like exchange systems

Info

Publication number
GB685309A
GB685309A GB735/50A GB73550A GB685309A GB 685309 A GB685309 A GB 685309A GB 735/50 A GB735/50 A GB 735/50A GB 73550 A GB73550 A GB 73550A GB 685309 A GB685309 A GB 685309A
Authority
GB
United Kingdom
Prior art keywords
automatic telephone
exchange systems
exchange
systems
telephone
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
GB735/50A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB685309A publication Critical patent/GB685309A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
GB735/50A 1949-01-14 1950-01-11 Improvements in automatic telephone and like exchange systems Expired GB685309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL280687X 1949-01-14

Publications (1)

Publication Number Publication Date
GB685309A true GB685309A (en) 1952-12-31

Family

ID=19782290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB735/50A Expired GB685309A (en) 1949-01-14 1950-01-11 Improvements in automatic telephone and like exchange systems

Country Status (5)

Country Link
BE (1) BE493239A (enrdf_load_stackoverflow)
CH (1) CH280687A (enrdf_load_stackoverflow)
DE (1) DE822564C (enrdf_load_stackoverflow)
FR (1) FR1008258A (enrdf_load_stackoverflow)
GB (1) GB685309A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969954C (de) * 1954-10-28 1958-08-07 Allg Telefon Fabrik G M B H Schaltungsanordnung fuer Fernmeldeanlagen mit Anrufsuchern
DE1029044B (de) * 1955-09-14 1958-04-30 Siemens Ag Relaislose Teilnehmerschaltung fuer Fernsprechanlagen
DE1132981B (de) * 1960-07-13 1962-07-12 Arnstadt Fernmeldewerk Schaltungsanordnung fuer Teilnehmerschaltungen in elektronisch gesteuerten Fernsprechanlagen

Also Published As

Publication number Publication date
BE493239A (enrdf_load_stackoverflow)
FR1008258A (fr) 1952-05-15
CH280687A (de) 1952-01-31
DE822564C (de) 1951-11-26

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