CH217085A - Microphone. - Google Patents

Microphone.

Info

Publication number
CH217085A
CH217085A CH217085DA CH217085A CH 217085 A CH217085 A CH 217085A CH 217085D A CH217085D A CH 217085DA CH 217085 A CH217085 A CH 217085A
Authority
CH
Switzerland
Prior art keywords
microphone
Prior art date
Application number
Other languages
German (de)
Inventor
Erich Dr Fischer
Original Assignee
Erich Dr Fischer
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 Erich Dr Fischer filed Critical Erich Dr Fischer
Publication of CH217085A publication Critical patent/CH217085A/en

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
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
CH217085D 1938-08-25 1939-08-22 Microphone. CH217085A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE217085X 1938-08-25
DE71038X 1938-10-07

Publications (1)

Publication Number Publication Date
CH217085A true CH217085A (en) 1941-09-30

Family

ID=25749566

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217085D CH217085A (en) 1938-08-25 1939-08-22 Microphone.

Country Status (1)

Country Link
CH (1) CH217085A (en)

Similar Documents

Publication Publication Date Title
CH209305A (en) Kötzerspulmaschine.
DK56040C (en) Kohaleholder.
CH203845A (en) Teleferica monofune.
CH208727A (en) Kötzerspulmaschine.
CH217085A (en) Microphone.
GR7379B (en) AUDIO.
DK59877C (en) Savbue.
DK57882C (en) Draabeflaske.
DK55700C (en) Sneplov.
DK56061C (en) Kohaleholder.
DK56179C (en) Kohaleholder.
DK56372C (en) Stejlkartotek.
DK56443C (en) Ajlnedfælder.
DK56697C (en) Ajlnedfælder.
DK57399C (en) Smæklaas.
DK57599C (en) Saamaskine.
DK57752C (en) Rigellaas.
DK55508C (en) Vodrulle.
DK57917C (en) Interurbancentralanlæg.
DK57971C (en) Snortræk.
DK58035C (en) Oscillator-Modulator-Coupling.
DK58756C (en) Klapdavid.
DK58975C (en) Ajlnedfælder.
DK59494C (en) Vingestyret Projektil.
DK55236C (en) Broderenaal.