FR760961A - Improvements to hearing devices - Google Patents

Improvements to hearing devices

Info

Publication number
FR760961A
FR760961A FR760961DA FR760961A FR 760961 A FR760961 A FR 760961A FR 760961D A FR760961D A FR 760961DA FR 760961 A FR760961 A FR 760961A
Authority
FR
France
Prior art keywords
hearing devices
hearing
devices
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)
Inventor
Albert Henry Midgley
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 filed Critical
Application granted granted Critical
Publication of FR760961A publication Critical patent/FR760961A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR760961D 1933-05-18 1933-09-18 Improvements to hearing devices Expired FR760961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB760961X 1933-05-18

Publications (1)

Publication Number Publication Date
FR760961A true FR760961A (en) 1934-03-07

Family

ID=10496792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR760961D Expired FR760961A (en) 1933-05-18 1933-09-18 Improvements to hearing devices

Country Status (1)

Country Link
FR (1) FR760961A (en)

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