FR680082A - Improvement in electromechanical vibratory devices, for example loudspeakers - Google Patents

Improvement in electromechanical vibratory devices, for example loudspeakers

Info

Publication number
FR680082A
FR680082A FR680082DA FR680082A FR 680082 A FR680082 A FR 680082A FR 680082D A FR680082D A FR 680082DA FR 680082 A FR680082 A FR 680082A
Authority
FR
France
Prior art keywords
improvement
vibratory devices
example loudspeakers
electromechanical vibratory
electromechanical
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.)
WIRELESS MUSIC Ltd
Original Assignee
WIRELESS MUSIC 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 WIRELESS MUSIC Ltd filed Critical WIRELESS MUSIC Ltd
Application granted granted Critical
Publication of FR680082A publication Critical patent/FR680082A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
FR680082D 1928-08-21 1929-08-08 Improvement in electromechanical vibratory devices, for example loudspeakers Expired FR680082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2407528A GB319121A (en) 1928-08-21 1928-08-21 Improvements in or relating to electro-mechanical vibrating devices for use, for example, in loud speakers

Publications (1)

Publication Number Publication Date
FR680082A true FR680082A (en) 1930-04-24

Family

ID=10205969

Family Applications (1)

Application Number Title Priority Date Filing Date
FR680082D Expired FR680082A (en) 1928-08-21 1929-08-08 Improvement in electromechanical vibratory devices, for example loudspeakers

Country Status (2)

Country Link
FR (1) FR680082A (en)
GB (1) GB319121A (en)

Also Published As

Publication number Publication date
GB319121A (en) 1929-09-19

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