FR882404A - Hexapolar magnetic system for electro-acoustic devices - Google Patents

Hexapolar magnetic system for electro-acoustic devices

Info

Publication number
FR882404A
FR882404A FR882404DA FR882404A FR 882404 A FR882404 A FR 882404A FR 882404D A FR882404D A FR 882404DA FR 882404 A FR882404 A FR 882404A
Authority
FR
France
Prior art keywords
electro
magnetic system
acoustic devices
hexapolar
hexapolar magnetic
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Application granted granted Critical
Publication of FR882404A publication Critical patent/FR882404A/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
    • H04R11/06—Telephone receivers
    • 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
FR882404D 1941-05-09 1942-05-28 Hexapolar magnetic system for electro-acoustic devices Expired FR882404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE882404X 1941-05-09

Publications (1)

Publication Number Publication Date
FR882404A true FR882404A (en) 1943-06-02

Family

ID=45351100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882404D Expired FR882404A (en) 1941-05-09 1942-05-28 Hexapolar magnetic system for electro-acoustic devices

Country Status (3)

Country Link
BE (1) BE445825A (en)
CH (1) CH226795A (en)
FR (1) FR882404A (en)

Also Published As

Publication number Publication date
CH226795A (en) 1943-04-30
BE445825A (en) 1942-07-31

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