FR628217A - Haut-parleur sans pavillon - Google Patents

Haut-parleur sans pavillon

Info

Publication number
FR628217A
FR628217A FR628217DA FR628217A FR 628217 A FR628217 A FR 628217A FR 628217D A FR628217D A FR 628217DA FR 628217 A FR628217 A FR 628217A
Authority
FR
France
Prior art keywords
horn
loudspeaker
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)
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.)
BOTOPHON
Original Assignee
BOTOPHON
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 BOTOPHON filed Critical BOTOPHON
Application granted granted Critical
Publication of FR628217A publication Critical patent/FR628217A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR628217D 1927-03-08 1927-01-29 Haut-parleur sans pavillon Expired FR628217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB644727A GB280772A (en) 1927-03-08 1927-03-08 Hornless loud speaker

Publications (1)

Publication Number Publication Date
FR628217A true FR628217A (fr) 1927-09-20

Family

ID=9814643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR628217D Expired FR628217A (fr) 1927-03-08 1927-01-29 Haut-parleur sans pavillon

Country Status (2)

Country Link
FR (1) FR628217A (fr)
GB (1) GB280772A (fr)

Also Published As

Publication number Publication date
GB280772A (en) 1927-11-24

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