GB660726A - Improvements in or relating to automatic signal systems - Google Patents

Improvements in or relating to automatic signal systems

Info

Publication number
GB660726A
GB660726A GB17209/49A GB1720949A GB660726A GB 660726 A GB660726 A GB 660726A GB 17209/49 A GB17209/49 A GB 17209/49A GB 1720949 A GB1720949 A GB 1720949A GB 660726 A GB660726 A GB 660726A
Authority
GB
United Kingdom
Prior art keywords
resistors
line
potential
resistance
subscriber
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
GB17209/49A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB660726A publication Critical patent/GB660726A/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)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
GB17209/49A 1948-07-02 1949-06-29 Improvements in or relating to automatic signal systems Expired GB660726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL276568X 1948-07-02

Publications (1)

Publication Number Publication Date
GB660726A true GB660726A (en) 1951-11-14

Family

ID=19782141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17209/49A Expired GB660726A (en) 1948-07-02 1949-06-29 Improvements in or relating to automatic signal systems

Country Status (7)

Country Link
US (1) US2657270A (forum.php)
BE (1) BE489925A (forum.php)
CH (1) CH276568A (forum.php)
DE (1) DE807956C (forum.php)
FR (1) FR989951A (forum.php)
GB (1) GB660726A (forum.php)
NL (1) NL141296B (forum.php)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029044B (de) * 1955-09-14 1958-04-30 Siemens Ag Relaislose Teilnehmerschaltung fuer Fernsprechanlagen
CA584209A (en) * 1955-11-03 1959-09-29 Pitlik Hillel Electronic telephone subscriber's line circuit for neutralizing the effects of longitudinal induction and longitudinal unbalance
DE1029882B (de) * 1956-03-09 1958-05-14 Siemens Ag Verfahren und Schaltungsanordnung zum Anlassen von Anrufsuchern
DE1132981B (de) * 1960-07-13 1962-07-12 Arnstadt Fernmeldewerk Schaltungsanordnung fuer Teilnehmerschaltungen in elektronisch gesteuerten Fernsprechanlagen
US3156779A (en) * 1960-11-25 1964-11-10 Automatic Elect Lab Line finding arrangement
US3370129A (en) * 1964-09-02 1968-02-20 Stromberg Carlson Corp Biased diode telephone line finding circuits
FR2944843B1 (fr) 2009-04-27 2013-11-29 Skf Ab Roulement a billes, butee d'embrayage-debrayage comprenant un tel roulement et vehicule automobile equipe d'un tel roulement.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL30173C (forum.php) * 1927-01-31
US1914391A (en) * 1931-08-19 1933-06-20 Siemens Ag Telephone system
US2152889A (en) * 1935-05-31 1939-04-04 Panstwowe Zaklady Tele I Radjo Telephone system
FR959151A (forum.php) * 1945-09-03 1950-03-25

Also Published As

Publication number Publication date
FR989951A (fr) 1951-09-17
US2657270A (en) 1953-10-27
DE807956C (de) 1951-07-09
BE489925A (forum.php)
NL141296B (nl)
CH276568A (de) 1951-07-15

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