FR1012241A - Avertisseurs acoustiques - Google Patents

Avertisseurs acoustiques

Info

Publication number
FR1012241A
FR1012241A FR1012241DA FR1012241A FR 1012241 A FR1012241 A FR 1012241A FR 1012241D A FR1012241D A FR 1012241DA FR 1012241 A FR1012241 A FR 1012241A
Authority
FR
France
Prior art keywords
warning devices
acoustic warning
acoustic
devices
warning
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)
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.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont SA
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 Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Application granted granted Critical
Publication of FR1012241A publication Critical patent/FR1012241A/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
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064—Operating or striking mechanisms therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR1012241D 1950-02-08 1950-02-08 Avertisseurs acoustiques Expired FR1012241A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1012241T 1950-02-08

Publications (1)

Publication Number Publication Date
FR1012241A true FR1012241A (fr) 1952-07-07

Family

ID=9570666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1012241D Expired FR1012241A (fr) 1950-02-08 1950-02-08 Avertisseurs acoustiques

Country Status (1)

Country Link
FR (1) FR1012241A (fr)

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