FR790880A - Avertisseur sonore - Google Patents

Avertisseur sonore

Info

Publication number
FR790880A
FR790880A FR790880DA FR790880A FR 790880 A FR790880 A FR 790880A FR 790880D A FR790880D A FR 790880DA FR 790880 A FR790880 A FR 790880A
Authority
FR
France
Prior art keywords
buzzer
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 FR790880A publication Critical patent/FR790880A/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)
FR790880D 1935-06-04 1935-06-04 Avertisseur sonore Expired FR790880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR790880T 1935-06-04

Publications (1)

Publication Number Publication Date
FR790880A true FR790880A (fr) 1935-11-28

Family

ID=9224083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR790880D Expired FR790880A (fr) 1935-06-04 1935-06-04 Avertisseur sonore

Country Status (1)

Country Link
FR (1) FR790880A (fr)

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