NL6802838A - - Google Patents

Info

Publication number
NL6802838A
NL6802838A NL6802838A NL6802838A NL6802838A NL 6802838 A NL6802838 A NL 6802838A NL 6802838 A NL6802838 A NL 6802838A NL 6802838 A NL6802838 A NL 6802838A NL 6802838 A NL6802838 A NL 6802838A
Authority
NL
Netherlands
Application number
NL6802838A
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 filed Critical
Publication of NL6802838A publication Critical patent/NL6802838A/xx

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
NL6802838A 1967-04-04 1968-02-29 NL6802838A (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR101394A FR1526109A (fr) 1967-04-04 1967-04-04 Avertisseur sonore

Publications (1)

Publication Number Publication Date
NL6802838A true NL6802838A (https=) 1968-10-07

Family

ID=8628113

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6802838A NL6802838A (https=) 1967-04-04 1968-02-29

Country Status (6)

Country Link
BE (1) BE710559A (https=)
DE (1) DE1766054B1 (https=)
ES (1) ES352073A1 (https=)
FR (1) FR1526109A (https=)
GB (1) GB1182210A (https=)
NL (1) NL6802838A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116132893B (zh) * 2023-02-24 2025-09-16 歌尔股份有限公司 发声装置和电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492932C (de) * 1930-02-27 Westfaelische Metall Ind A G Akustisches Signalinstrument
DE410846C (de) * 1922-10-18 1925-03-06 Jakob Kertel Elektrische Hupe mit einer einen Luftraum einschliessenden, von einem Elektromagneten beeinflussten Doppelmembran
DE541535C (de) * 1929-05-11 1932-01-13 Weber Kranz & Co G M B H Verfahren zur Herstellung einer hydraulisch erhaertenden UEberzugsmasse aus Zement und bitumenhaltigem Schiefer
FR1226231A (fr) * 1958-07-16 1960-07-08 Magneti Marelli Spa Avertisseur électro-acoustique, en particulier pour véhicules automobiles

Also Published As

Publication number Publication date
ES352073A1 (es) 1969-06-16
BE710559A (https=) 1968-06-17
GB1182210A (en) 1970-02-25
FR1526109A (fr) 1968-05-24
DE1766054B1 (de) 1971-07-01

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