FR1052243A - Avertisseur haute fréquence - Google Patents

Avertisseur haute fréquence

Info

Publication number
FR1052243A
FR1052243A FR1052243DA FR1052243A FR 1052243 A FR1052243 A FR 1052243A FR 1052243D A FR1052243D A FR 1052243DA FR 1052243 A FR1052243 A FR 1052243A
Authority
FR
France
Prior art keywords
high frequency
frequency horn
horn
frequency
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
Rene Ferquin
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 FR1052243A publication Critical patent/FR1052243A/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
    • G10K9/15—Self-interrupting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR1052243D 1952-03-10 1952-03-10 Avertisseur haute fréquence Expired FR1052243A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1052243T 1952-03-10

Publications (1)

Publication Number Publication Date
FR1052243A true FR1052243A (fr) 1954-01-22

Family

ID=9595175

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1052243D Expired FR1052243A (fr) 1952-03-10 1952-03-10 Avertisseur haute fréquence

Country Status (1)

Country Link
FR (1) FR1052243A (fr)

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