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FR714750A - Improvements to electrical warning devices for vehicles - Google Patents

Improvements to electrical warning devices for vehicles

Info

Publication number
FR714750A
FR714750A FR714750DA FR714750A FR 714750 A FR714750 A FR 714750A FR 714750D A FR714750D A FR 714750DA FR 714750 A FR714750 A FR 714750A
Authority
FR
France
Prior art keywords
vehicles
warning devices
electrical warning
electrical
devices
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
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CIE DE CONST D ACCESSOIRES POU
Original Assignee
CIE DE CONST D ACCESSOIRES POU
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 by CIE DE CONST D ACCESSOIRES POU filed Critical CIE DE CONST D ACCESSOIRES POU
Application granted granted Critical
Publication of FR714750A publication Critical patent/FR714750A/en
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)
FR714750D 1931-04-03 1931-04-03 Improvements to electrical warning devices for vehicles Expired FR714750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR714750T 1931-04-03

Publications (1)

Publication Number Publication Date
FR714750A true FR714750A (en) 1931-11-19

Family

ID=9088366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714750D Expired FR714750A (en) 1931-04-03 1931-04-03 Improvements to electrical warning devices for vehicles

Country Status (1)

Country Link
FR (1) FR714750A (en)

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