FR1137444A - Hearing aid - Google Patents

Hearing aid

Info

Publication number
FR1137444A
FR1137444A FR1137444DA FR1137444A FR 1137444 A FR1137444 A FR 1137444A FR 1137444D A FR1137444D A FR 1137444DA FR 1137444 A FR1137444 A FR 1137444A
Authority
FR
France
Prior art keywords
hearing aid
hearing
aid
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.)
American Danish Oticon AS
Original Assignee
American Danish Oticon AS
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 American Danish Oticon AS filed Critical American Danish Oticon AS
Application granted granted Critical
Publication of FR1137444A publication Critical patent/FR1137444A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1137444D 1954-09-13 1955-07-27 Hearing aid Expired FR1137444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1137444X 1954-09-13

Publications (1)

Publication Number Publication Date
FR1137444A true FR1137444A (en) 1957-05-28

Family

ID=10876876

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1137444D Expired FR1137444A (en) 1954-09-13 1955-07-27 Hearing aid

Country Status (1)

Country Link
FR (1) FR1137444A (en)

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