FR731818A - Inductor system for electro-acoustic devices, such as loudspeakers and other similar devices, provided with a permanent magnet - Google Patents

Inductor system for electro-acoustic devices, such as loudspeakers and other similar devices, provided with a permanent magnet

Info

Publication number
FR731818A
FR731818A FR731818DA FR731818A FR 731818 A FR731818 A FR 731818A FR 731818D A FR731818D A FR 731818DA FR 731818 A FR731818 A FR 731818A
Authority
FR
France
Prior art keywords
devices
loudspeakers
electro
permanent magnet
inductor system
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR731818A publication Critical patent/FR731818A/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)
FR731818D 1931-06-10 1932-02-25 Inductor system for electro-acoustic devices, such as loudspeakers and other similar devices, provided with a permanent magnet Expired FR731818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL382514X 1931-06-10

Publications (1)

Publication Number Publication Date
FR731818A true FR731818A (en) 1932-09-08

Family

ID=19785666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731818D Expired FR731818A (en) 1931-06-10 1932-02-25 Inductor system for electro-acoustic devices, such as loudspeakers and other similar devices, provided with a permanent magnet

Country Status (3)

Country Link
BE (1) BE386663A (en)
FR (1) FR731818A (en)
GB (1) GB382514A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427571A (en) * 1947-09-16 Magnetic structure for electrical
DE10119984A1 (en) * 2001-04-24 2002-10-31 Bosch Gmbh Robert Fuel injection device for an internal combustion engine

Also Published As

Publication number Publication date
BE386663A (en)
GB382514A (en) 1932-10-27

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