FR2111759B1 - - Google Patents

Info

Publication number
FR2111759B1
FR2111759B1 FR7137268A FR7137268A FR2111759B1 FR 2111759 B1 FR2111759 B1 FR 2111759B1 FR 7137268 A FR7137268 A FR 7137268A FR 7137268 A FR7137268 A FR 7137268A FR 2111759 B1 FR2111759 B1 FR 2111759B1
Authority
FR
France
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
FR7137268A
Other languages
French (fr)
Other versions
FR2111759A1 (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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2111759A1 publication Critical patent/FR2111759A1/fr
Application granted granted Critical
Publication of FR2111759B1 publication Critical patent/FR2111759B1/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
    • H04R17/02—Microphones
FR7137268A 1970-10-22 1971-10-18 Expired FR2111759B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50130/70A GB1278009A (en) 1970-10-22 1970-10-22 Microphone

Publications (2)

Publication Number Publication Date
FR2111759A1 FR2111759A1 (en) 1972-06-09
FR2111759B1 true FR2111759B1 (en) 1976-12-03

Family

ID=10454774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7137268A Expired FR2111759B1 (en) 1970-10-22 1971-10-18

Country Status (6)

Country Link
US (1) US3856995A (en)
AU (1) AU3470771A (en)
DE (1) DE2152025A1 (en)
FR (1) FR2111759B1 (en)
GB (1) GB1278009A (en)
IL (1) IL38042A0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020448A (en) * 1973-09-17 1977-04-26 James Patrick Corbett Oscillating crystal transducer systems
GB1487847A (en) * 1974-09-25 1977-10-05 Ard Anstalt Microphone units
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
FR2536622B1 (en) * 1982-11-19 1986-03-07 Thomson Csf SPEED HYDROPHONE
US6272360B1 (en) * 1997-07-03 2001-08-07 Pan Communications, Inc. Remotely installed transmitter and a hands-free two-way voice terminal device using same
US8266451B2 (en) * 2001-08-31 2012-09-11 Gemalto Sa Voice activated smart card
JP2010273408A (en) * 2009-05-19 2010-12-02 Emprie Technology Development LLC Power device, method of generating power, and method of manufacturing the power device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA748567A (en) * 1966-12-13 D. Ibbotson Thomas Electro-acoustic transducers
US2463762A (en) * 1941-11-14 1949-03-08 Automatic Elect Lab Electroacoustical transducer
US2967957A (en) * 1957-09-17 1961-01-10 Massa Frank Electroacoustic transducer
DE1277347B (en) * 1967-06-05 1968-09-12 Willco Gmbh Microphone for hearing aids

Also Published As

Publication number Publication date
US3856995A (en) 1974-12-24
DE2152025A1 (en) 1972-04-27
FR2111759A1 (en) 1972-06-09
IL38042A0 (en) 1972-03-28
AU3470771A (en) 1973-05-03
GB1278009A (en) 1972-06-14

Similar Documents

Publication Publication Date Title
AU1146470A (en)
AU1833270A (en)
AU1326870A (en)
AU1336970A (en)
AU1517670A (en)
AU1716970A (en)
AU1841070A (en)
AU1969370A (en)
AU1083170A (en)
AU1086670A (en)
AU1189670A (en)
AU1235770A (en)
AU1879170A (en)
AU1832970A (en)
AU1247570A (en)
AU1789870A (en)
AU1881070A (en)
AU1277070A (en)
AU1872870A (en)
AU1328670A (en)
AU1689770A (en)
AU1943370A (en)
AU1343870A (en)
AU1918570A (en)
AU1603270A (en)

Legal Events

Date Code Title Description
ST Notification of lapse