FR723469A - Warning device operating on automobile exhaust - Google Patents

Warning device operating on automobile exhaust

Info

Publication number
FR723469A
FR723469A FR723469DA FR723469A FR 723469 A FR723469 A FR 723469A FR 723469D A FR723469D A FR 723469DA FR 723469 A FR723469 A FR 723469A
Authority
FR
France
Prior art keywords
warning device
device operating
automobile exhaust
automobile
exhaust
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
French (fr)
Inventor
Eugene Mouret
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 FR723469A publication Critical patent/FR723469A/en
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)
FR723469D 1931-09-30 1931-09-30 Warning device operating on automobile exhaust Expired FR723469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR723469T 1931-09-30

Publications (1)

Publication Number Publication Date
FR723469A true FR723469A (en) 1932-04-09

Family

ID=9105000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR723469D Expired FR723469A (en) 1931-09-30 1931-09-30 Warning device operating on automobile exhaust

Country Status (1)

Country Link
FR (1) FR723469A (en)

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