FR778716A - Avertisseur pneumatique - Google Patents

Avertisseur pneumatique

Info

Publication number
FR778716A
FR778716A FR778716DA FR778716A FR 778716 A FR778716 A FR 778716A FR 778716D A FR778716D A FR 778716DA FR 778716 A FR778716 A FR 778716A
Authority
FR
France
Prior art keywords
air horn
horn
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
Egisthe Verneuil
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 FR778716A publication Critical patent/FR778716A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02Devices 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)
FR778716D 1933-12-09 1933-12-09 Avertisseur pneumatique Expired FR778716A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR778716T 1933-12-09

Publications (1)

Publication Number Publication Date
FR778716A true FR778716A (fr) 1935-03-22

Family

ID=9202313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778716D Expired FR778716A (fr) 1933-12-09 1933-12-09 Avertisseur pneumatique

Country Status (1)

Country Link
FR (1) FR778716A (fr)

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