FR778446A - Microphone - Google Patents

Microphone

Info

Publication number
FR778446A
FR778446A FR778446DA FR778446A FR 778446 A FR778446 A FR 778446A FR 778446D A FR778446D A FR 778446DA FR 778446 A FR778446 A FR 778446A
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
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.)
Siemens APP und Maschinen GmbH
Original Assignee
Siemens APP und Maschinen GmbH
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 Siemens APP und Maschinen GmbH filed Critical Siemens APP und Maschinen GmbH
Application granted granted Critical
Publication of FR778446A publication Critical patent/FR778446A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR778446D 1933-10-11 1934-09-11 Microphone Expired FR778446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE778446X 1933-10-11

Publications (1)

Publication Number Publication Date
FR778446A true FR778446A (en) 1935-03-15

Family

ID=6686970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778446D Expired FR778446A (en) 1933-10-11 1934-09-11 Microphone

Country Status (1)

Country Link
FR (1) FR778446A (en)

Similar Documents

Publication Publication Date Title
FR778446A (en) Microphone
FR778333A (en) Microphone
FR778751A (en) Microphone
FR771073A (en) Advanced microphone
FI15046A (en) Påle
FI15239A (en) Barkningstrumma
FI14907A (en) Tvätt- och rengöringsmedel
FI14918A (en) Centraluppvärmningspanna
FI14919A (en) Eldstadsrost
FI15031A (en) Rakblad
FI15269A (en) Dörr- eller fönsterhasp
FI15267A (en) Polerdyna
FI15266A (en) Bromsanordning
FI15246A (en) Räkneanordning
FI15025A (en) Planetväxel
FI15235A (en) Sughuv
FI15226A (en) Riktat antennsystem
FI15208A (en) Suksiside
FI15207A (en) Suksiside
FI15192A (en) Stångkvarn
FI15181A (en) Barkningsmaskin
FI15164A (en) Stickkontaktanordning
FI15158A (en) Vattenståndsvisare
FI15153A (en) Kortsystem
FI15151A (en) Strömningsmaskin