FR537994A - Warning and economizer device for automobiles - Google Patents

Warning and economizer device for automobiles

Info

Publication number
FR537994A
FR537994A FR537994DA FR537994A FR 537994 A FR537994 A FR 537994A FR 537994D A FR537994D A FR 537994DA FR 537994 A FR537994 A FR 537994A
Authority
FR
France
Prior art keywords
automobiles
warning
economizer device
economizer
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
Armand Massip
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 FR537994A publication Critical patent/FR537994A/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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR537994D 1921-07-06 1921-07-06 Warning and economizer device for automobiles Expired FR537994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR537994T 1921-07-06

Publications (1)

Publication Number Publication Date
FR537994A true FR537994A (en) 1922-06-01

Family

ID=8927900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR537994D Expired FR537994A (en) 1921-07-06 1921-07-06 Warning and economizer device for automobiles

Country Status (1)

Country Link
FR (1) FR537994A (en)

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