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FR2247860B3 - - Google Patents

Info

Publication number
FR2247860B3
FR2247860B3 FR7433771A FR7433771A FR2247860B3 FR 2247860 B3 FR2247860 B3 FR 2247860B3 FR 7433771 A FR7433771 A FR 7433771A FR 7433771 A FR7433771 A FR 7433771A FR 2247860 B3 FR2247860 B3 FR 2247860B3
Authority
FR
France
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
FR7433771A
Other versions
FR2247860A1 (fr
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.)
Superior Continental Corp
Original Assignee
Superior Continental Corp
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 Superior Continental Corp filed Critical Superior Continental Corp
Publication of FR2247860A1 publication Critical patent/FR2247860A1/fr
Application granted granted Critical
Publication of FR2247860B3 publication Critical patent/FR2247860B3/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/006—Circuits for increasing the range of current supply source

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
FR7433771A 1973-10-12 1974-10-08 Expired FR2247860B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US405787A US3889066A (en) 1973-10-12 1973-10-12 Relay range extender for telephone systems

Publications (2)

Publication Number Publication Date
FR2247860A1 FR2247860A1 (fr) 1975-05-09
FR2247860B3 true FR2247860B3 (fr) 1977-07-15

Family

ID=23605239

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7433771A Expired FR2247860B3 (fr) 1973-10-12 1974-10-08

Country Status (5)

Country Link
US (1) US3889066A (fr)
BR (1) BR7406983D0 (fr)
CA (1) CA1006279A (fr)
FR (1) FR2247860B3 (fr)
GB (1) GB1475353A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140881A (en) * 1977-03-08 1979-02-20 Clenney Richard W Telephone loop extending apparatus
US4205204A (en) * 1977-03-08 1980-05-27 Clenney Richard W Telephone loop extending apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393274A (en) * 1964-12-18 1968-07-16 American Telephone & Telegraph Subscriber loop and trunk loop range extension circuit
US3508009A (en) * 1967-09-06 1970-04-21 Bell Telephone Labor Inc Range extension circuit
US3626101A (en) * 1969-06-02 1971-12-07 San Bar Electronics Corp Loop extender for subscribers connected to a central office by abnormally long telephone lines

Also Published As

Publication number Publication date
US3889066A (en) 1975-06-10
GB1475353A (en) 1977-06-01
BR7406983D0 (pt) 1975-09-09
FR2247860A1 (fr) 1975-05-09
CA1006279A (en) 1977-03-01

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse