FR795937A - Appareil électrique contre la surdité - Google Patents

Appareil électrique contre la surdité

Info

Publication number
FR795937A
FR795937A FR795937DA FR795937A FR 795937 A FR795937 A FR 795937A FR 795937D A FR795937D A FR 795937DA FR 795937 A FR795937 A FR 795937A
Authority
FR
France
Prior art keywords
deafness
electric device
device against
electric
against deafness
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)
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.)
Sonotone Corp
Original Assignee
Sonotone Corp
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 Sonotone Corp filed Critical Sonotone Corp
Application granted granted Critical
Publication of FR795937A publication Critical patent/FR795937A/fr
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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR795937D 1934-10-04 1935-10-04 Appareil électrique contre la surdité Expired FR795937A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463666XA 1934-10-04 1934-10-04

Publications (1)

Publication Number Publication Date
FR795937A true FR795937A (fr) 1936-03-25

Family

ID=21943068

Family Applications (1)

Application Number Title Priority Date Filing Date
FR795937D Expired FR795937A (fr) 1934-10-04 1935-10-04 Appareil électrique contre la surdité

Country Status (3)

Country Link
FR (1) FR795937A (enEXAMPLES)
GB (1) GB463666A (enEXAMPLES)
NL (1) NL43727C (enEXAMPLES)

Also Published As

Publication number Publication date
GB463666A (en) 1937-04-05
NL43727C (enEXAMPLES)

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