BE479953A - - Google Patents

Info

Publication number
BE479953A
BE479953A BE479953DA BE479953A BE 479953 A BE479953 A BE 479953A BE 479953D A BE479953D A BE 479953DA BE 479953 A BE479953 A BE 479953A
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 BE479953A publication Critical patent/BE479953A/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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
BE479953D 1940-11-29 BE479953A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB266931X 1940-11-29

Publications (1)

Publication Number Publication Date
BE479953A true BE479953A (enrdf_load_stackoverflow)

Family

ID=10247697

Family Applications (1)

Application Number Title Priority Date Filing Date
BE479953D BE479953A (enrdf_load_stackoverflow) 1940-11-29

Country Status (4)

Country Link
US (1) US2360796A (enrdf_load_stackoverflow)
BE (1) BE479953A (enrdf_load_stackoverflow)
CH (1) CH266931A (enrdf_load_stackoverflow)
FR (1) FR939303A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485278A (en) * 1945-03-31 1949-10-18 Permoflux Corp Hand microphone and switch
US2493734A (en) * 1945-05-23 1950-01-03 Sonotone Corp Magnetic insert earphone insertable in the ear of the user
US2523775A (en) * 1946-05-17 1950-09-26 Wheeler Insulated Wire Company Electromagnetic transducer
BE476263A (enrdf_load_stackoverflow) * 1946-06-21
BE473856A (enrdf_load_stackoverflow) * 1946-10-19
US3060282A (en) * 1957-07-26 1962-10-23 Baldwin Piano Co Electroacoustic transducer
US3066200A (en) * 1958-08-11 1962-11-27 William Ward Jackson Speaker device
NL121669C (enrdf_load_stackoverflow) * 1960-05-05
DE1155486B (de) * 1961-03-08 1963-10-10 Arnstadt Fernmeldewerk Ringfoermiges oder rechteckfoermiges, in bezug auf den Anker symmetrisches Magnetsystem fuer elektroakustische Wandler
KR102706153B1 (ko) * 2017-01-03 2024-09-11 유수진 브리지 에지 방식의 고해상 전자기 스피커

Also Published As

Publication number Publication date
CH266931A (de) 1950-02-28
US2360796A (en) 1944-10-17
FR939303A (fr) 1948-11-09

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