BE467392A - - Google Patents

Info

Publication number
BE467392A
BE467392A BE467392DA BE467392A BE 467392 A BE467392 A BE 467392A BE 467392D A BE467392D A BE 467392DA BE 467392 A BE467392 A BE 467392A
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 BE467392A publication Critical patent/BE467392A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • A44B19/44—Securing metal interlocking members to ready-made stringer tapes
    • A44B19/46—Securing separate interlocking members
    • A44B19/48—Arranging interlocking members before securing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
BE467392D 1944-05-05 BE467392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8492/44A GB584677A (en) 1944-05-05 1944-05-05 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
BE467392A true BE467392A (en)

Family

ID=9853491

Family Applications (1)

Application Number Title Priority Date Filing Date
BE467392D BE467392A (en) 1944-05-05

Country Status (3)

Country Link
US (1) US2486100A (en)
BE (1) BE467392A (en)
GB (1) GB584677A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE482466A (en) * 1947-04-29
US2566009A (en) * 1947-12-12 1951-08-28 Automatic Elect Lab Interexchange switching telephone system
US2693526A (en) * 1949-06-15 1954-11-02 Automatic Elect Lab Single channel single frequency mobile radio telephone system
US2636947A (en) * 1949-12-16 1953-04-28 Bell Telephone Labor Inc Two-way trunk for pulse conversion systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155176A (en) * 1936-11-07 1939-04-18 Associated Electric Lab Inc Telephone system
GB489609A (en) * 1937-01-25 1938-07-25 Standard Telephones Cables Ltd Improvements in or relating to electrical communication exchange systems
NL64785C (en) * 1943-02-13
US2374884A (en) * 1943-08-19 1945-05-01 Bell Telephone Labor Inc Signaling system
US2368056A (en) * 1943-08-19 1945-01-23 Bell Telephone Labor Inc Signaling system
US2425066A (en) * 1945-02-26 1947-08-05 Standard Telephones Cables Ltd Pulsed multiplex system employing different width and repetition frequencies for each channel

Also Published As

Publication number Publication date
US2486100A (en) 1949-10-25
GB584677A (en) 1947-01-21

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