FR345826A - Répétiteur téléphonique - Google Patents

Répétiteur téléphonique

Info

Publication number
FR345826A
FR345826A FR345826DA FR345826A FR 345826 A FR345826 A FR 345826A FR 345826D A FR345826D A FR 345826DA FR 345826 A FR345826 A FR 345826A
Authority
FR
France
Prior art keywords
telephone repeater
repeater
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
George Washington Kretzinger
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 FR345826A publication Critical patent/FR345826A/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)
FR345826D 1904-07-26 1904-07-26 Répétiteur téléphonique Expired FR345826A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR345826T 1904-07-26

Publications (1)

Publication Number Publication Date
FR345826A true FR345826A (fr) 1904-12-17

Family

ID=1394589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR345826D Expired FR345826A (fr) 1904-07-26 1904-07-26 Répétiteur téléphonique

Country Status (1)

Country Link
FR (1) FR345826A (fr)

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