FR684154A - Perfectionnements aux hauts-parleurs - Google Patents

Perfectionnements aux hauts-parleurs

Info

Publication number
FR684154A
FR684154A FR684154DA FR684154A FR 684154 A FR684154 A FR 684154A FR 684154D A FR684154D A FR 684154DA FR 684154 A FR684154 A FR 684154A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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)
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.)
Philips North America LLC
Original Assignee
Magnavox Co
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 Magnavox Co filed Critical Magnavox Co
Application granted granted Critical
Publication of FR684154A publication Critical patent/FR684154A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR684154D 1929-03-27 1929-10-29 Perfectionnements aux hauts-parleurs Expired FR684154A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US684154XA 1929-03-27 1929-03-27

Publications (1)

Publication Number Publication Date
FR684154A true FR684154A (fr) 1930-06-23

Family

ID=22082435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR684154D Expired FR684154A (fr) 1929-03-27 1929-10-29 Perfectionnements aux hauts-parleurs

Country Status (2)

Country Link
BE (1) BE364906A (cg-RX-API-DMAC7.html)
FR (1) FR684154A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
BE364906A (cg-RX-API-DMAC7.html)

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