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FR1132876A - Avertisseurs sonores - Google Patents

Avertisseurs sonores

Info

Publication number
FR1132876A
FR1132876A FR1132876DA FR1132876A FR 1132876 A FR1132876 A FR 1132876A FR 1132876D A FR1132876D A FR 1132876DA FR 1132876 A FR1132876 A FR 1132876A
Authority
FR
France
Prior art keywords
audible warning
warning devices
audible
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Application granted granted Critical
Publication of FR1132876A publication Critical patent/FR1132876A/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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR1132876D 1955-05-06 1955-05-06 Avertisseurs sonores Expired FR1132876A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1132876T 1955-05-06

Publications (1)

Publication Number Publication Date
FR1132876A true FR1132876A (fr) 1957-03-18

Family

ID=9638590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1132876D Expired FR1132876A (fr) 1955-05-06 1955-05-06 Avertisseurs sonores

Country Status (1)

Country Link
FR (1) FR1132876A (fr)

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