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FR2679401B1 - RESIDENTIAL INTERCOMMUNICATION SYSTEM. - Google Patents

RESIDENTIAL INTERCOMMUNICATION SYSTEM.

Info

Publication number
FR2679401B1
FR2679401B1 FR9109125A FR9109125A FR2679401B1 FR 2679401 B1 FR2679401 B1 FR 2679401B1 FR 9109125 A FR9109125 A FR 9109125A FR 9109125 A FR9109125 A FR 9109125A FR 2679401 B1 FR2679401 B1 FR 2679401B1
Authority
FR
France
Prior art keywords
residential
intercommunication system
intercommunication
residential intercommunication
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 - Fee Related
Application number
FR9109125A
Other languages
French (fr)
Other versions
FR2679401A1 (en
Inventor
Paul Bloch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9109125A priority Critical patent/FR2679401B1/en
Publication of FR2679401A1 publication Critical patent/FR2679401A1/en
Application granted granted Critical
Publication of FR2679401B1 publication Critical patent/FR2679401B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR9109125A 1991-07-16 1991-07-16 RESIDENTIAL INTERCOMMUNICATION SYSTEM. Expired - Fee Related FR2679401B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9109125A FR2679401B1 (en) 1991-07-16 1991-07-16 RESIDENTIAL INTERCOMMUNICATION SYSTEM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9109125A FR2679401B1 (en) 1991-07-16 1991-07-16 RESIDENTIAL INTERCOMMUNICATION SYSTEM.

Publications (2)

Publication Number Publication Date
FR2679401A1 FR2679401A1 (en) 1993-01-22
FR2679401B1 true FR2679401B1 (en) 1993-11-05

Family

ID=9415289

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9109125A Expired - Fee Related FR2679401B1 (en) 1991-07-16 1991-07-16 RESIDENTIAL INTERCOMMUNICATION SYSTEM.

Country Status (1)

Country Link
FR (1) FR2679401B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR833176A (en) * 1937-07-05 1938-10-13 Cie Telephones Thomson Houston Improvements to telephone systems
US4636589A (en) * 1985-02-04 1987-01-13 American Phone Products In-line telephone intercom system
GB8600712D0 (en) * 1986-01-13 1986-02-19 Kirby W A Telephone intercom device

Also Published As

Publication number Publication date
FR2679401A1 (en) 1993-01-22

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Legal Events

Date Code Title Description
ST Notification of lapse