FR700050A - Avertisseur sonore électrique - Google Patents

Avertisseur sonore électrique

Info

Publication number
FR700050A
FR700050A FR700050DA FR700050A FR 700050 A FR700050 A FR 700050A FR 700050D A FR700050D A FR 700050DA FR 700050 A FR700050 A FR 700050A
Authority
FR
France
Prior art keywords
electric horn
horn
electric
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Gentilhomme
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
Application granted granted Critical
Publication of FR700050A publication Critical patent/FR700050A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices 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)
FR700050D 1929-11-19 1929-11-19 Avertisseur sonore électrique Expired FR700050A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700050T 1929-11-19

Publications (1)

Publication Number Publication Date
FR700050A true FR700050A (fr) 1931-02-23

Family

ID=9048737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700050D Expired FR700050A (fr) 1929-11-19 1929-11-19 Avertisseur sonore électrique

Country Status (1)

Country Link
FR (1) FR700050A (fr)

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