FR773165A - Piezoelectric devices for sound reproduction - Google Patents

Piezoelectric devices for sound reproduction

Info

Publication number
FR773165A
FR773165A FR773165DA FR773165A FR 773165 A FR773165 A FR 773165A FR 773165D A FR773165D A FR 773165DA FR 773165 A FR773165 A FR 773165A
Authority
FR
France
Prior art keywords
sound reproduction
piezoelectric devices
piezoelectric
devices
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)
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.)
Sonotone Corp
Original Assignee
Sonotone Corp
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 Sonotone Corp filed Critical Sonotone Corp
Application granted granted Critical
Publication of FR773165A publication Critical patent/FR773165A/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
FR773165D 1933-05-24 1934-05-11 Piezoelectric devices for sound reproduction Expired FR773165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US773165XA 1933-05-24 1933-05-24

Publications (1)

Publication Number Publication Date
FR773165A true FR773165A (en) 1934-11-13

Family

ID=22137356

Family Applications (1)

Application Number Title Priority Date Filing Date
FR773165D Expired FR773165A (en) 1933-05-24 1934-05-11 Piezoelectric devices for sound reproduction

Country Status (1)

Country Link
FR (1) FR773165A (en)

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