BE452930A - - Google Patents

Info

Publication number
BE452930A
BE452930A BE452930DA BE452930A BE 452930 A BE452930 A BE 452930A BE 452930D A BE452930D A BE 452930DA BE 452930 A BE452930 A BE 452930A
Authority
BE
Belgium
Application number
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 BE452930A publication Critical patent/BE452930A/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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE452930D 1942-10-30 BE452930A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR252030X 1942-10-30

Publications (1)

Publication Number Publication Date
BE452930A true BE452930A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=8884181

Family Applications (1)

Application Number Title Priority Date Filing Date
BE452930D BE452930A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1942-10-30

Country Status (3)

Country Link
BE (1) BE452930A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH252030A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR960711A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115766B (de) * 1956-06-09 1961-10-26 Schoeps Dr Ing Karl Schallempfaenger

Also Published As

Publication number Publication date
FR960711A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1950-04-22
CH252030A (fr) 1947-11-30

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