FR874258A - Improvements in loudspeaker construction - Google Patents

Improvements in loudspeaker construction

Info

Publication number
FR874258A
FR874258A FR874258DA FR874258A FR 874258 A FR874258 A FR 874258A FR 874258D A FR874258D A FR 874258DA FR 874258 A FR874258 A FR 874258A
Authority
FR
France
Prior art keywords
loudspeaker construction
loudspeaker
construction
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.)
Air Industrie SA
Original Assignee
Air Industrie SA
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 Air Industrie SA filed Critical Air Industrie SA
Application granted granted Critical
Publication of FR874258A publication Critical patent/FR874258A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR874258D 1941-03-26 1941-03-26 Improvements in loudspeaker construction Expired FR874258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR874258T 1941-03-26

Publications (1)

Publication Number Publication Date
FR874258A true FR874258A (en) 1942-08-03

Family

ID=9359635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874258D Expired FR874258A (en) 1941-03-26 1941-03-26 Improvements in loudspeaker construction

Country Status (1)

Country Link
FR (1) FR874258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532414A (en) * 1946-12-31 1950-12-05 Univ Loudspeakers Inc Permanent magnet electrodynamic loud-speaker structure adapted for ready assembly
US2950359A (en) * 1956-10-01 1960-08-23 Rola Company Inc Loud speaker assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532414A (en) * 1946-12-31 1950-12-05 Univ Loudspeakers Inc Permanent magnet electrodynamic loud-speaker structure adapted for ready assembly
US2950359A (en) * 1956-10-01 1960-08-23 Rola Company Inc Loud speaker assembly

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