GB683339A - 3 digit pbx connector - Google Patents

3 digit pbx connector

Info

Publication number
GB683339A
GB683339A GB25048/50A GB2504850A GB683339A GB 683339 A GB683339 A GB 683339A GB 25048/50 A GB25048/50 A GB 25048/50A GB 2504850 A GB2504850 A GB 2504850A GB 683339 A GB683339 A GB 683339A
Authority
GB
United Kingdom
Prior art keywords
relay
digit
line
locks
busy
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
GB25048/50A
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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 Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Publication of GB683339A publication Critical patent/GB683339A/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)
  • Monitoring And Testing Of Exchanges (AREA)
  • Relay Circuits (AREA)
GB25048/50A 1949-11-26 1950-10-13 3 digit pbx connector Expired GB683339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US129599A US2652454A (en) 1949-11-26 1949-11-26 Rotary connector switch

Publications (1)

Publication Number Publication Date
GB683339A true GB683339A (en) 1952-11-26

Family

ID=22440740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25048/50A Expired GB683339A (en) 1949-11-26 1950-10-13 3 digit pbx connector

Country Status (3)

Country Link
US (1) US2652454A (enrdf_load_stackoverflow)
BE (1) BE499228A (enrdf_load_stackoverflow)
GB (1) GB683339A (enrdf_load_stackoverflow)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386688A (en) * 1919-06-05 1921-08-09 Western Electric Co Telephone-exchange system
US1556897A (en) * 1925-04-14 1925-10-13 Reuben H Bare Perforation cleaner for oil-well casings
US1799175A (en) * 1927-02-25 1931-04-07 Merk Friedrich Automatic telephone system
GB337829A (en) * 1929-08-09 1930-11-10 Automatic Telephone Mfg Co Ltd Improvements in or relating to automatic switches for use in telephone or like systems
GB351959A (en) * 1930-03-31 1931-06-30 Siemens Brothers & Co Ltd Improvements relating to automatic and semi-automatic telephone systems
NL57800C (nl) * 1941-04-15 1946-07-15 Bell Telephone Manf Co Sa Electrisch seinstelsel
NL57905C (nl) * 1941-05-20 1946-07-15 Bell Telephone Manufacturing Co Sa Telefoonstelsel of soortgelijk stelsel

Also Published As

Publication number Publication date
US2652454A (en) 1953-09-15
BE499228A (enrdf_load_stackoverflow)

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