GB656693A - Improvements in or relating to automatic telephone apparatus - Google Patents

Improvements in or relating to automatic telephone apparatus

Info

Publication number
GB656693A
GB656693A GB28011/48A GB2801148A GB656693A GB 656693 A GB656693 A GB 656693A GB 28011/48 A GB28011/48 A GB 28011/48A GB 2801148 A GB2801148 A GB 2801148A GB 656693 A GB656693 A GB 656693A
Authority
GB
United Kingdom
Prior art keywords
tubes
tube
circuit
junctor
register
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
GB28011/48A
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB656693A publication Critical patent/GB656693A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB28011/48A 1947-10-29 1948-10-28 Improvements in or relating to automatic telephone apparatus Expired GB656693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US782704A US2582959A (en) 1947-10-29 1947-10-29 Electron-tube controlled switching system

Publications (1)

Publication Number Publication Date
GB656693A true GB656693A (en) 1951-08-29

Family

ID=25126922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28011/48A Expired GB656693A (en) 1947-10-29 1948-10-28 Improvements in or relating to automatic telephone apparatus

Country Status (6)

Country Link
US (1) US2582959A (US20020051482A1-20020502-M00012.png)
BE (1) BE485493A (US20020051482A1-20020502-M00012.png)
CH (1) CH277495A (US20020051482A1-20020502-M00012.png)
FR (1) FR973819A (US20020051482A1-20020502-M00012.png)
GB (1) GB656693A (US20020051482A1-20020502-M00012.png)
NL (1) NL143044B (US20020051482A1-20020502-M00012.png)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674657A (en) * 1949-04-04 1954-04-06 Itt Primary-secondary-spread crossbar telephone system
BE497529A (US20020051482A1-20020502-M00012.png) * 1949-08-12
US2686837A (en) * 1949-09-10 1954-08-17 Bell Telephone Labor Inc High-speed electronic switching system
BE498266A (US20020051482A1-20020502-M00012.png) * 1949-09-23
BE498523A (US20020051482A1-20020502-M00012.png) * 1949-10-07
US2668195A (en) * 1949-12-29 1954-02-02 Bell Telephone Labor Inc Marking and switching system
NL87832C (US20020051482A1-20020502-M00012.png) * 1950-05-17
US2672521A (en) * 1950-10-17 1954-03-16 Bell Telephone Labor Inc Channel testing circuit
US2734946A (en) * 1951-04-03 1956-02-14 Mercer
US2813929A (en) * 1951-11-12 1957-11-19 Nederlanden Staat Automatic signalling system
BE515435A (US20020051482A1-20020502-M00012.png) * 1951-11-12
BE516931A (US20020051482A1-20020502-M00012.png) * 1952-01-16
NL175544B (nl) * 1952-01-26 Prodemco S A Verbrandingsinrichting voor huis- en industrieel afval.
US2960575A (en) * 1952-04-10 1960-11-15 Int Standard Electric Corp Automatic telecommunication systems
BE519952A (US20020051482A1-20020502-M00012.png) * 1952-05-16
GB784522A (en) * 1954-10-19 1957-10-09 Gen Electric Co Ltd Improvements in and relating to automatic telephone systems
US2773128A (en) * 1955-02-28 1956-12-04 Itt Crossbar-switch connector system
US3007008A (en) * 1955-07-15 1961-10-31 North Electric Co Automatic telephone system
US2999131A (en) * 1956-06-21 1961-09-05 Ericsson Telefon Ab L M Group selection stage for automatic telephone exchanges
BE625449A (US20020051482A1-20020502-M00012.png) * 1961-04-25

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291752A (en) * 1941-02-05 1942-08-04 Bell Telephone Labor Inc Selecting system
NL68615C (US20020051482A1-20020502-M00012.png) * 1941-02-08 1900-01-01
US2291040A (en) * 1941-02-08 1942-07-28 Bell Telephone Labor Inc Switching system
NL69254C (US20020051482A1-20020502-M00012.png) * 1941-02-08 1900-01-01
US2310452A (en) * 1941-06-05 1943-02-09 Bell Telephone Labor Inc Switching system
NL72717C (US20020051482A1-20020502-M00012.png) * 1941-11-21
BE475754A (US20020051482A1-20020502-M00012.png) * 1941-11-21
US2326458A (en) * 1942-02-17 1943-08-10 Bell Telephone Labor Inc Selection system
US2326478A (en) * 1942-02-17 1943-08-10 Bell Telephone Labor Inc Selection system
US2317471A (en) * 1942-02-17 1943-04-27 Bell Telephone Labor Inc Selection system
US2348626A (en) * 1942-11-14 1944-05-09 Bell Telephone Labor Inc Channel selecting circuit
GB566445A (en) * 1943-08-13 1944-12-29 Siemens Brothers & Co Ltd Improvements relating to searching arrangements in telephone systems
BE465609A (US20020051482A1-20020502-M00012.png) * 1944-02-11

Also Published As

Publication number Publication date
US2582959A (en) 1952-01-22
CH277495A (de) 1951-08-31
NL143044B (nl)
FR973819A (US20020051482A1-20020502-M00012.png) 1951-02-15
BE485493A (US20020051482A1-20020502-M00012.png)

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