FR727962A - Avertisseur sonore - Google Patents

Avertisseur sonore

Info

Publication number
FR727962A
FR727962A FR727962DA FR727962A FR 727962 A FR727962 A FR 727962A FR 727962D A FR727962D A FR 727962DA FR 727962 A FR727962 A FR 727962A
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
Louis-Alfred Weber
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 FR727962A publication Critical patent/FR727962A/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
    • G10K5/00—Whistles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR727962D 1931-12-07 1931-12-07 Avertisseur sonore Expired FR727962A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR727962T 1931-12-07

Publications (1)

Publication Number Publication Date
FR727962A true FR727962A (fr) 1932-06-27

Family

ID=9111598

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727962D Expired FR727962A (fr) 1931-12-07 1931-12-07 Avertisseur sonore

Country Status (1)

Country Link
FR (1) FR727962A (fr)

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