BE465763A - - Google Patents

Info

Publication number
BE465763A
BE465763A BE465763DA BE465763A BE 465763 A BE465763 A BE 465763A BE 465763D A BE465763D A BE 465763DA BE 465763 A BE465763 A BE 465763A
Authority
BE
Belgium
Application number
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.)
Publication of BE465763A publication Critical patent/BE465763A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
BE465763D 1945-06-06 BE465763A (US20090177143A1-20090709-C00008.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US597778A US2508644A (en) 1945-06-06 1945-06-06 Telephone call intercepting system

Publications (1)

Publication Number Publication Date
BE465763A true BE465763A (US20090177143A1-20090709-C00008.png)

Family

ID=24392886

Family Applications (1)

Application Number Title Priority Date Filing Date
BE465763D BE465763A (US20090177143A1-20090709-C00008.png) 1945-06-06

Country Status (2)

Country Link
US (1) US2508644A (US20090177143A1-20090709-C00008.png)
BE (1) BE465763A (US20090177143A1-20090709-C00008.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710893A (en) * 1951-03-27 1955-06-14 Itt Automatic telephone system and translator therefor
US2751434A (en) * 1953-11-18 1956-06-19 Automatic Elect Lab Automatic telephone systems provided with party lines
US2888519A (en) * 1954-07-09 1959-05-26 Itt Code-ringing call-intercepting telephone system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1463271A (en) * 1923-07-31 martin
US1070726A (en) * 1907-02-04 1913-08-19 Arthur F Poole Harmonic selective telephone system.
US1889466A (en) * 1930-07-26 1932-11-29 Ericsson Telefon Ab L M Telephone plant
US1969376A (en) * 1933-11-13 1934-08-07 Leich Electric Co Harmonic converter circuit
US2236797A (en) * 1937-08-02 1941-04-01 Fides Gmbh Telephone system
US2285282A (en) * 1940-11-16 1942-06-02 Associated Electric Lab Inc Telephone system
US2320885A (en) * 1941-03-21 1943-06-01 Stromberg Carlson Telephone Signaling system
US2344634A (en) * 1942-01-08 1944-03-21 Stromberg Carlson Telephone Telephone intercept system

Also Published As

Publication number Publication date
US2508644A (en) 1950-05-23

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