FR678245A - Improvements to electromagnetic motors for loudspeakers - Google Patents

Improvements to electromagnetic motors for loudspeakers

Info

Publication number
FR678245A
FR678245A FR678245DA FR678245A FR 678245 A FR678245 A FR 678245A FR 678245D A FR678245D A FR 678245DA FR 678245 A FR678245 A FR 678245A
Authority
FR
France
Prior art keywords
loudspeakers
electromagnetic motors
motors
electromagnetic
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
Robert Alindret
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 FR678245A publication Critical patent/FR678245A/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
    • H04R11/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR678245D 1929-07-10 1929-07-10 Improvements to electromagnetic motors for loudspeakers Expired FR678245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR678245T 1929-07-10

Publications (1)

Publication Number Publication Date
FR678245A true FR678245A (en) 1930-03-20

Family

ID=9020944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR678245D Expired FR678245A (en) 1929-07-10 1929-07-10 Improvements to electromagnetic motors for loudspeakers

Country Status (1)

Country Link
FR (1) FR678245A (en)

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