FR434347A - Relais téléphonique - Google Patents

Relais téléphonique

Info

Publication number
FR434347A
FR434347A FR434347DA FR434347A FR 434347 A FR434347 A FR 434347A FR 434347D A FR434347D A FR 434347DA FR 434347 A FR434347 A FR 434347A
Authority
FR
France
Prior art keywords
telephone relay
relay
telephone
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
English (en)
Inventor
Josef Schiessler
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
Application granted granted Critical
Publication of FR434347A publication Critical patent/FR434347A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR434347D 1911-09-19 1911-09-19 Relais téléphonique Expired FR434347A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR434347T 1911-09-19

Publications (1)

Publication Number Publication Date
FR434347A true FR434347A (fr) 1912-01-31

Family

ID=1476259

Family Applications (1)

Application Number Title Priority Date Filing Date
FR434347D Expired FR434347A (fr) 1911-09-19 1911-09-19 Relais téléphonique

Country Status (1)

Country Link
FR (1) FR434347A (fr)

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