FR664693A - Sound reproducer - Google Patents

Sound reproducer

Info

Publication number
FR664693A
FR664693A FR664693DA FR664693A FR 664693 A FR664693 A FR 664693A FR 664693D A FR664693D A FR 664693DA FR 664693 A FR664693 A FR 664693A
Authority
FR
France
Prior art keywords
sound reproducer
reproducer
sound
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.)
BRANDES Ltd
Original Assignee
BRANDES Ltd
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 BRANDES Ltd filed Critical BRANDES Ltd
Application granted granted Critical
Publication of FR664693A publication Critical patent/FR664693A/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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • 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)
  • Diaphragms For Electromechanical Transducers (AREA)
FR664693D 1927-07-30 1928-07-28 Sound reproducer Expired FR664693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US294875XA 1927-07-30 1927-07-30

Publications (1)

Publication Number Publication Date
FR664693A true FR664693A (en) 1929-09-06

Family

ID=21849258

Family Applications (1)

Application Number Title Priority Date Filing Date
FR664693D Expired FR664693A (en) 1927-07-30 1928-07-28 Sound reproducer

Country Status (4)

Country Link
BE (1) BE352792A (en)
FR (1) FR664693A (en)
GB (1) GB294875A (en)
NL (1) NL25688C (en)

Also Published As

Publication number Publication date
NL25688C (en)
GB294875A (en) 1929-08-22
BE352792A (en)

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