FR676389A - Method and device for electromagnetic reproduction of sound - Google Patents

Method and device for electromagnetic reproduction of sound

Info

Publication number
FR676389A
FR676389A FR676389DA FR676389A FR 676389 A FR676389 A FR 676389A FR 676389D A FR676389D A FR 676389DA FR 676389 A FR676389 A FR 676389A
Authority
FR
France
Prior art keywords
reproduction
sound
electromagnetic
electromagnetic reproduction
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)
Inventor
James-Bernard Fagan
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 filed Critical
Application granted granted Critical
Publication of FR676389A publication Critical patent/FR676389A/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
FR676389D 1928-06-09 1929-06-08 Method and device for electromagnetic reproduction of sound Expired FR676389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US284020A US2110193A (en) 1928-06-09 1928-06-09 Electromagnetic reproduction of sound and other wave motions

Publications (1)

Publication Number Publication Date
FR676389A true FR676389A (en) 1930-02-21

Family

ID=23088552

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676389D Expired FR676389A (en) 1928-06-09 1929-06-08 Method and device for electromagnetic reproduction of sound

Country Status (3)

Country Link
US (1) US2110193A (en)
FR (1) FR676389A (en)
GB (1) GB313406A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062926A (en) * 1959-03-20 1962-11-06 John J Ronci Magnet with vibratable armature
US3112375A (en) * 1960-01-20 1963-11-26 Mechanies For Electronic Inc Loudspeaker construction

Also Published As

Publication number Publication date
GB313406A (en) 1930-05-01
US2110193A (en) 1938-03-08

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