NL68610C - - Google Patents

Info

Publication number
NL68610C
NL68610C NL68610DA NL68610C NL 68610 C NL68610 C NL 68610C NL 68610D A NL68610D A NL 68610DA NL 68610 C NL68610 C NL 68610C
Authority
NL
Netherlands
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 NL68610C publication Critical patent/NL68610C/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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL68610D 1941-01-27 NL68610C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376094A US2298764A (en) 1941-01-27 1941-01-27 Sound translating device

Publications (1)

Publication Number Publication Date
NL68610C true NL68610C (enrdf_load_html_response)

Family

ID=23483682

Family Applications (1)

Application Number Title Priority Date Filing Date
NL68610D NL68610C (enrdf_load_html_response) 1941-01-27

Country Status (3)

Country Link
US (1) US2298764A (enrdf_load_html_response)
FR (1) FR938781A (enrdf_load_html_response)
NL (1) NL68610C (enrdf_load_html_response)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493734A (en) * 1945-05-23 1950-01-03 Sonotone Corp Magnetic insert earphone insertable in the ear of the user
US2540487A (en) * 1946-10-19 1951-02-06 Bell Telephone Labor Inc Electroacoustic transducer
US2486837A (en) * 1948-12-11 1949-11-01 Avco Mfg Corp Magnetic assembly for permanent magnet type loudspeakers
US3113186A (en) * 1962-02-06 1963-12-03 Walter E Heller & Company Telephone device
TWM508867U (zh) * 2015-04-24 2015-09-11 Jetvox Acoustic Corp 中心降噪喇叭結構

Also Published As

Publication number Publication date
US2298764A (en) 1942-10-13
FR938781A (fr) 1948-10-25

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