GB1101571A - Telephone instrument spark suppressing means - Google Patents

Telephone instrument spark suppressing means

Info

Publication number
GB1101571A
GB1101571A GB488766A GB488766A GB1101571A GB 1101571 A GB1101571 A GB 1101571A GB 488766 A GB488766 A GB 488766A GB 488766 A GB488766 A GB 488766A GB 1101571 A GB1101571 A GB 1101571A
Authority
GB
United Kingdom
Prior art keywords
voltage
feb
switched
suppressing means
telephone instrument
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
GB488766A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1101571A publication Critical patent/GB1101571A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
GB488766A 1965-02-05 1966-02-03 Telephone instrument spark suppressing means Expired GB1101571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE148565 1965-02-05

Publications (1)

Publication Number Publication Date
GB1101571A true GB1101571A (en) 1968-01-31

Family

ID=20258263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB488766A Expired GB1101571A (en) 1965-02-05 1966-02-03 Telephone instrument spark suppressing means

Country Status (3)

Country Link
BE (1) BE676107A (enrdf_load_stackoverflow)
GB (1) GB1101571A (enrdf_load_stackoverflow)
NL (1) NL6601338A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL6601338A (enrdf_load_stackoverflow) 1966-08-08
BE676107A (enrdf_load_stackoverflow) 1966-06-16

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