GB283971A - Improvements in electric circuits for central telephone offices - Google Patents

Improvements in electric circuits for central telephone offices

Info

Publication number
GB283971A
GB283971A GB1959/28A GB195928A GB283971A GB 283971 A GB283971 A GB 283971A GB 1959/28 A GB1959/28 A GB 1959/28A GB 195928 A GB195928 A GB 195928A GB 283971 A GB283971 A GB 283971A
Authority
GB
United Kingdom
Prior art keywords
relay
over
finders
jan
electric circuits
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
GB1959/28A
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.)
FATME SpA
Original Assignee
FATME SpA
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 FATME SpA filed Critical FATME SpA
Publication of GB283971A publication Critical patent/GB283971A/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)
  • Interface Circuits In Exchanges (AREA)
GB1959/28A 1927-01-31 1928-01-20 Improvements in electric circuits for central telephone offices Expired GB283971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1723524X 1927-01-31

Publications (1)

Publication Number Publication Date
GB283971A true GB283971A (en) 1929-07-22

Family

ID=11434533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1959/28A Expired GB283971A (en) 1927-01-31 1928-01-20 Improvements in electric circuits for central telephone offices

Country Status (3)

Country Link
US (1) US1723524A (xx)
GB (1) GB283971A (xx)
NL (1) NL30173C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893518C (de) * 1949-01-17 1953-10-15 Philips Nv Schaltungsanordnung fuer eine Fernmeldeanlage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR959151A (xx) * 1945-09-03 1950-03-25
NL141296B (nl) * 1948-07-02 Thomson Houston Comp Francaise Dopplerradarstelsel.
US3156779A (en) * 1960-11-25 1964-11-10 Automatic Elect Lab Line finding arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893518C (de) * 1949-01-17 1953-10-15 Philips Nv Schaltungsanordnung fuer eine Fernmeldeanlage

Also Published As

Publication number Publication date
US1723524A (en) 1929-08-06
NL30173C (xx)

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