FR706046A - Improvements to vibrating electromagnetic devices, such as sound recording and reproducing devices - Google Patents

Improvements to vibrating electromagnetic devices, such as sound recording and reproducing devices

Info

Publication number
FR706046A
FR706046A FR706046DA FR706046A FR 706046 A FR706046 A FR 706046A FR 706046D A FR706046D A FR 706046DA FR 706046 A FR706046 A FR 706046A
Authority
FR
France
Prior art keywords
devices
sound recording
vibrating electromagnetic
reproducing
reproducing devices
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 FR706046A publication Critical patent/FR706046A/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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR706046D 1929-11-26 1930-11-08 Improvements to vibrating electromagnetic devices, such as sound recording and reproducing devices Expired FR706046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3626229A GB346852A (en) 1929-11-26 1929-11-26 Improvements in electro-magnetic vibratory devices, such for example as sound reproducing or recording devices

Publications (1)

Publication Number Publication Date
FR706046A true FR706046A (en) 1931-06-17

Family

ID=10386498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR706046D Expired FR706046A (en) 1929-11-26 1930-11-08 Improvements to vibrating electromagnetic devices, such as sound recording and reproducing devices

Country Status (2)

Country Link
FR (1) FR706046A (en)
GB (1) GB346852A (en)

Also Published As

Publication number Publication date
GB346852A (en) 1931-04-23

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