FR873583A - Appareil auxiliaire pour sourds - Google Patents

Appareil auxiliaire pour sourds

Info

Publication number
FR873583A
FR873583A FR873583DA FR873583A FR 873583 A FR873583 A FR 873583A FR 873583D A FR873583D A FR 873583DA FR 873583 A FR873583 A FR 873583A
Authority
FR
France
Prior art keywords
deaf
auxiliary device
auxiliary
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.)
Akustik Ges Steup & Co Deutsch
Original Assignee
Akustik Ges Steup & Co Deutsch
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 Akustik Ges Steup & Co Deutsch filed Critical Akustik Ges Steup & Co Deutsch
Application granted granted Critical
Publication of FR873583A publication Critical patent/FR873583A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR873583D 1941-07-04 1941-07-04 Appareil auxiliaire pour sourds Expired FR873583A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873583T 1941-07-04

Publications (1)

Publication Number Publication Date
FR873583A true FR873583A (fr) 1942-07-13

Family

ID=9359360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873583D Expired FR873583A (fr) 1941-07-04 1941-07-04 Appareil auxiliaire pour sourds

Country Status (1)

Country Link
FR (1) FR873583A (fr)

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