BE517334A - - Google Patents

Info

Publication number
BE517334A
BE517334A BE517334DA BE517334A BE 517334 A BE517334 A BE 517334A BE 517334D A BE517334D A BE 517334DA BE 517334 A BE517334 A BE 517334A
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 BE517334A publication Critical patent/BE517334A/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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
BE517334D 1952-02-01 BE517334A (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE312614X 1952-02-01

Publications (1)

Publication Number Publication Date
BE517334A true BE517334A (sv)

Family

ID=6135960

Family Applications (1)

Application Number Title Priority Date Filing Date
BE517334D BE517334A (sv) 1952-02-01

Country Status (4)

Country Link
US (1) US2764714A (sv)
BE (1) BE517334A (sv)
CH (1) CH312614A (sv)
NL (2) NL86996C (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871463A (en) * 1952-08-01 1959-01-27 Gen Electric Method and apparatus for transmission of intelligence
US2963595A (en) * 1958-11-10 1960-12-06 Beckman Instruments Inc Relay switching circuit
US3272012A (en) * 1959-09-09 1966-09-13 Du Pont High speed scanning system
NL6606166A (sv) * 1966-05-06 1967-11-07

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787550A (en) * 1928-08-30 1931-01-06 Union Switch & Signal Co Electrical apparatus
US2303875A (en) * 1940-03-28 1942-12-01 Union Switch & Signal Co Remote control system
US2424243A (en) * 1944-01-19 1947-07-22 Percival D Lowell Remote control system
US2444039A (en) * 1945-06-16 1948-06-29 Bell Telephone Labor Inc Signaling system
US2446216A (en) * 1945-07-16 1948-08-03 Union Switch & Signal Co Electrical control apparatus

Also Published As

Publication number Publication date
CH312614A (de) 1956-01-31
US2764714A (en) 1956-09-25
NL86996C (sv)
NL175494B (nl)

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