FR678652A - Electromagnetic sound reproducer - Google Patents

Electromagnetic sound reproducer

Info

Publication number
FR678652A
FR678652A FR678652DA FR678652A FR 678652 A FR678652 A FR 678652A FR 678652D A FR678652D A FR 678652DA FR 678652 A FR678652 A FR 678652A
Authority
FR
France
Prior art keywords
sound reproducer
electromagnetic sound
electromagnetic
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.)
Kolster Brandes Ltd
Original Assignee
Kolster 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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Application granted granted Critical
Publication of FR678652A publication Critical patent/FR678652A/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)
FR678652D 1929-07-10 1929-07-10 Electromagnetic sound reproducer Expired FR678652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR678652T 1929-07-10

Publications (1)

Publication Number Publication Date
FR678652A true FR678652A (en) 1930-04-03

Family

ID=9021174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR678652D Expired FR678652A (en) 1929-07-10 1929-07-10 Electromagnetic sound reproducer

Country Status (2)

Country Link
BE (1) BE362580A (en)
FR (1) FR678652A (en)

Also Published As

Publication number Publication date
BE362580A (en)

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