FR351867A - Microtéléphone - Google Patents

Microtéléphone

Info

Publication number
FR351867A
FR351867A FR351867DA FR351867A FR 351867 A FR351867 A FR 351867A FR 351867D A FR351867D A FR 351867DA FR 351867 A FR351867 A FR 351867A
Authority
FR
France
Prior art keywords
microphone
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)
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.)
FRANCAISE DES TELEPHONES SYSTEME BERLINER Ste
Original Assignee
FRANCAISE DES TELEPHONES SYSTEME BERLINER Ste
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 FRANCAISE DES TELEPHONES SYSTEME BERLINER Ste filed Critical FRANCAISE DES TELEPHONES SYSTEME BERLINER Ste
Application granted granted Critical
Publication of FR351867A publication Critical patent/FR351867A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR351867D 1905-02-28 1905-02-28 Microtéléphone Expired FR351867A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR351867T 1905-02-28

Publications (1)

Publication Number Publication Date
FR351867A true FR351867A (fr) 1905-07-28

Family

ID=1400150

Family Applications (1)

Application Number Title Priority Date Filing Date
FR351867D Expired FR351867A (fr) 1905-02-28 1905-02-28 Microtéléphone

Country Status (1)

Country Link
FR (1) FR351867A (fr)

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