GB220955A - - Google Patents

Info

Publication number
GB220955A
GB220955A GB19840/24A GB1984024A GB220955A GB 220955 A GB220955 A GB 220955A GB 19840/24 A GB19840/24 A GB 19840/24A GB 1984024 A GB1984024 A GB 1984024A GB 220955 A GB220955 A GB 220955A
Authority
GB
United Kingdom
Prior art keywords
exchange
registers
digits
subscriber
released
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
GB19840/24A
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co 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 Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Publication of GB220955A publication Critical patent/GB220955A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Meter Arrangements (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
GB19840/24A 1922-12-23 1923-10-29 Expired GB220955A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US608741A US1638331A (en) 1922-12-23 1922-12-23 Multioffice telephone system

Publications (1)

Publication Number Publication Date
GB220955A true GB220955A (enrdf_load_stackoverflow) 1925-03-02

Family

ID=24437783

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19840/24A Expired GB220955A (enrdf_load_stackoverflow) 1922-12-23 1923-10-29
GB27066/23A Expired GB209040A (en) 1922-12-23 1923-10-29 Improvements in or relating to telephone systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB27066/23A Expired GB209040A (en) 1922-12-23 1923-10-29 Improvements in or relating to telephone systems

Country Status (2)

Country Link
US (1) US1638331A (enrdf_load_stackoverflow)
GB (2) GB220955A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554115A (en) * 1947-12-08 1951-05-22 Automatic Elect Lab Automatic director telephone system
NL151089B (nl) * 1949-01-29 Organon Labor Ltd Werkwijze voor het bereiden van 2beta-amino-3alfa-hydroxy-5alfa-androstaanderivaten, alsmede werkwijze ter bereiding van farmaceutische preparaten en aldus verkregen gevormde preparaten.

Also Published As

Publication number Publication date
US1638331A (en) 1927-08-09
GB209040A (en) 1925-01-29

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