BE464634A - - Google Patents

Info

Publication number
BE464634A
BE464634A BE464634DA BE464634A BE 464634 A BE464634 A BE 464634A BE 464634D A BE464634D A BE 464634DA BE 464634 A BE464634 A BE 464634A
Authority
BE
Belgium
Application number
Original Assignee
S E M S A R L Ets
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.)
Publication of BE464634A publication Critical patent/BE464634A/xx

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
    • H04R19/00—Electrostatic transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers
BE464634D 1946-01-22 BE464634A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR252811X 1946-01-22

Publications (1)

Publication Number Publication Date
BE464634A true BE464634A (xx)

Family

ID=8884273

Family Applications (1)

Application Number Title Priority Date Filing Date
BE464634D BE464634A (xx) 1946-01-22

Country Status (3)

Country Link
BE (1) BE464634A (xx)
CH (1) CH252811A (xx)
GB (1) GB610297A (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659022A (en) * 1951-05-22 1953-11-10 Tele King Corp Electrostatic deflection system
US3008013A (en) * 1954-07-20 1961-11-07 Ferranti Ltd Electrostatic loudspeakers
US2910539A (en) * 1956-07-27 1959-10-27 William L Hartsfield Microphones
US3118022A (en) * 1961-08-07 1964-01-14 Bell Telephone Labor Inc Electroacoustic transducer
US3458713A (en) * 1966-11-01 1969-07-29 Northern Electric Co Polycarbonate electrets
NL143362B (nl) * 1968-07-10 1974-09-16 Tno Werkwijze voor het formeren van een eenzijdig gemetalliseerde elektreetfoelie, alsmede zulk een elektreetfoelie geformeerd volgens deze werkwijze.
US3748727A (en) * 1968-07-11 1973-07-31 W Swain Method of making electret transducers
DE2330800C3 (de) * 1973-06-16 1981-10-01 Sennheiser Electronic Kg, 3002 Wedemark Elektroakustischer Wandler nach dem elektrostatischen Prinzip und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
GB610297A (en) 1948-10-13
CH252811A (fr) 1948-01-31

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