FR932929A - Telephone and analog systems - Google Patents

Telephone and analog systems

Info

Publication number
FR932929A
FR932929A FR932929DA FR932929A FR 932929 A FR932929 A FR 932929A FR 932929D A FR932929D A FR 932929DA FR 932929 A FR932929 A FR 932929A
Authority
FR
France
Prior art keywords
telephone
analog systems
analog
systems
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
Other languages
French (fr)
Inventor
Frank Augustus Leibe
Walter A Miner
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR932929A publication Critical patent/FR932929A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
FR932929D 1943-05-01 1946-04-04 Telephone and analog systems Expired FR932929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US485314A US2395887A (en) 1943-05-01 1943-05-01 Automatic switch-over signal for telephones

Publications (1)

Publication Number Publication Date
FR932929A true FR932929A (en) 1948-04-06

Family

ID=23927676

Family Applications (1)

Application Number Title Priority Date Filing Date
FR932929D Expired FR932929A (en) 1943-05-01 1946-04-04 Telephone and analog systems

Country Status (2)

Country Link
US (1) US2395887A (en)
FR (1) FR932929A (en)

Also Published As

Publication number Publication date
US2395887A (en) 1946-03-05

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