NL66024C - - Google Patents

Info

Publication number
NL66024C
NL66024C NL66024DA NL66024C NL 66024 C NL66024 C NL 66024C NL 66024D A NL66024D A NL 66024DA NL 66024 C NL66024 C NL 66024C
Authority
NL
Netherlands
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 NL66024C publication Critical patent/NL66024C/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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL66024D 1944-06-02 NL66024C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR992238T 1944-06-02

Publications (1)

Publication Number Publication Date
NL66024C true NL66024C (xx)

Family

ID=9554619

Family Applications (1)

Application Number Title Priority Date Filing Date
NL66024D NL66024C (xx) 1944-06-02

Country Status (6)

Country Link
US (1) US2563311A (xx)
BE (1) BE466149A (xx)
CH (1) CH251259A (xx)
FR (1) FR992238A (xx)
GB (1) GB616297A (xx)
NL (1) NL66024C (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816962A (en) * 1954-11-10 1957-12-17 T S Skillman And Company Pty L Steady-state signalling using alternating currents

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46259C (xx) * 1928-05-12
DE621696C (de) * 1929-08-20 1935-11-12 Ericsson Telefon Ab L M Schaltungsanordnung zur induktiven UEbertragung von Gleichstromstoessen
US1906338A (en) * 1930-04-23 1933-05-02 Ass Telephone & Telegraph Co Telephone system
DE592681C (de) * 1931-03-02 1934-02-12 Siemens & Halske Akt Ges Schaltungsanordnung zur Stromstossuebertragung in Fernsprechanlagen
GB482014A (en) * 1937-02-26 1938-03-22 Siemens Brothers & Co Ltd Improvements relating to telephone systems
GB498310A (en) * 1937-07-05 1939-01-05 Automatic Telephone & Elect Improvements in or relating to telephone or like systems
BE468834A (xx) * 1940-08-06
US2292371A (en) * 1941-07-19 1942-08-11 Bell Telephone Labor Inc Repeater circuit

Also Published As

Publication number Publication date
GB616297A (en) 1949-01-19
US2563311A (en) 1951-08-07
CH251259A (fr) 1947-10-15
BE466149A (xx) 1946-07-31
FR992238A (fr) 1951-10-16

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