FR2144172A5 - - Google Patents

Info

Publication number
FR2144172A5
FR2144172A5 FR7129567A FR7129567A FR2144172A5 FR 2144172 A5 FR2144172 A5 FR 2144172A5 FR 7129567 A FR7129567 A FR 7129567A FR 7129567 A FR7129567 A FR 7129567A FR 2144172 A5 FR2144172 A5 FR 2144172A5
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
FR7129567A
Other languages
French (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.)
SIME BRONDI Srl
Original Assignee
SIME BRONDI Srl
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 SIME BRONDI Srl filed Critical SIME BRONDI Srl
Application granted granted Critical
Publication of FR2144172A5 publication Critical patent/FR2144172A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/62—Constructional arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR7129567A 1971-06-26 1971-08-12 Expired FR2144172A5 (enFirst)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6919271 1971-06-26

Publications (1)

Publication Number Publication Date
FR2144172A5 true FR2144172A5 (enFirst) 1973-02-09

Family

ID=11311523

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7129567A Expired FR2144172A5 (enFirst) 1971-06-26 1971-08-12

Country Status (2)

Country Link
DE (1) DE2139347A1 (enFirst)
FR (1) FR2144172A5 (enFirst)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19855037A1 (de) * 1998-11-28 2000-06-08 Motorola Inc Kommunikationsgerät mit Wahl der Betriebsart in Abhängigkeit von dessen Lage zu einem unabhängigen Bezugssystem

Also Published As

Publication number Publication date
DE2139347A1 (de) 1973-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse