FR698184A - Perfectionnement aux cornets avertisseurs à air - Google Patents

Perfectionnement aux cornets avertisseurs à air

Info

Publication number
FR698184A
FR698184A FR698184DA FR698184A FR 698184 A FR698184 A FR 698184A FR 698184D A FR698184D A FR 698184DA FR 698184 A FR698184 A FR 698184A
Authority
FR
France
Prior art keywords
improvement
air horns
horns
air
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 Clammer
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 FR698184A publication Critical patent/FR698184A/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
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR698184D 1930-06-28 1930-06-28 Perfectionnement aux cornets avertisseurs à air Expired FR698184A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR698184T 1930-06-28

Publications (1)

Publication Number Publication Date
FR698184A true FR698184A (fr) 1931-01-28

Family

ID=9047560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR698184D Expired FR698184A (fr) 1930-06-28 1930-06-28 Perfectionnement aux cornets avertisseurs à air

Country Status (1)

Country Link
FR (1) FR698184A (fr)

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