FR382105A - Perfectionnements au réglage du microphone solid-back - Google Patents

Perfectionnements au réglage du microphone solid-back

Info

Publication number
FR382105A
FR382105A FR382105DA FR382105A FR 382105 A FR382105 A FR 382105A FR 382105D A FR382105D A FR 382105DA FR 382105 A FR382105 A FR 382105A
Authority
FR
France
Prior art keywords
solid
back microphone
microphone tuning
tuning improvements
tuning
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
Augustin-Rene-Frederic Gallonier
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.)
AUGUSTIN RENE FREDERIC GALLONI
Original Assignee
AUGUSTIN RENE FREDERIC GALLONI
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 AUGUSTIN RENE FREDERIC GALLONI filed Critical AUGUSTIN RENE FREDERIC GALLONI
Application granted granted Critical
Publication of FR382105A publication Critical patent/FR382105A/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)
FR382105D 1907-09-20 1907-09-20 Perfectionnements au réglage du microphone solid-back Expired FR382105A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR382105T 1907-09-20

Publications (1)

Publication Number Publication Date
FR382105A true FR382105A (fr) 1908-01-30

Family

ID=1428211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR382105D Expired FR382105A (fr) 1907-09-20 1907-09-20 Perfectionnements au réglage du microphone solid-back

Country Status (1)

Country Link
FR (1) FR382105A (fr)

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