FR849531A - Transducteur piézoélectrique - Google Patents

Transducteur piézoélectrique

Info

Publication number
FR849531A
FR849531A FR849531DA FR849531A FR 849531 A FR849531 A FR 849531A FR 849531D A FR849531D A FR 849531DA FR 849531 A FR849531 A FR 849531A
Authority
FR
France
Prior art keywords
piezoelectric transducer
piezoelectric
transducer
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
English (en)
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Application granted granted Critical
Publication of FR849531A publication Critical patent/FR849531A/fr
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
FR849531D 1938-01-29 1939-01-26 Transducteur piézoélectrique Expired FR849531A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT849531X 1938-01-29

Publications (1)

Publication Number Publication Date
FR849531A true FR849531A (fr) 1939-11-25

Family

ID=11326359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR849531D Expired FR849531A (fr) 1938-01-29 1939-01-26 Transducteur piézoélectrique

Country Status (1)

Country Link
FR (1) FR849531A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451221A (en) * 1944-10-30 1948-10-12 William H Hutter Wedged needle type phonograph pickup
US2485137A (en) * 1944-10-30 1949-10-18 Brush Dev Co Connection means for phonograph pickups
US2564054A (en) * 1947-10-10 1951-08-14 Magnavox Co Phonograph pickup and mechanical motion converting system therefor
US2596494A (en) * 1948-06-12 1952-05-13 Brush Dev Co Ceramic electromechanical transducer
US2640165A (en) * 1948-05-29 1953-05-26 Gulton Mfg Corp Ceramic transducer element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451221A (en) * 1944-10-30 1948-10-12 William H Hutter Wedged needle type phonograph pickup
US2485137A (en) * 1944-10-30 1949-10-18 Brush Dev Co Connection means for phonograph pickups
US2564054A (en) * 1947-10-10 1951-08-14 Magnavox Co Phonograph pickup and mechanical motion converting system therefor
US2640165A (en) * 1948-05-29 1953-05-26 Gulton Mfg Corp Ceramic transducer element
US2596494A (en) * 1948-06-12 1952-05-13 Brush Dev Co Ceramic electromechanical transducer

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