FR509023A - Perfectionnements aux cornets avertisseurs - Google Patents

Perfectionnements aux cornets avertisseurs

Info

Publication number
FR509023A
FR509023A FR509023A FR509023DA FR509023A FR 509023 A FR509023 A FR 509023A FR 509023 A FR509023 A FR 509023A FR 509023D A FR509023D A FR 509023DA FR 509023 A FR509023 A FR 509023A
Authority
FR
France
Prior art keywords
horns
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
FR509023A
Other languages
English (en)
Inventor
Georges Ollier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR509023A publication Critical patent/FR509023A/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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR509023A 1919-08-21 1919-08-21 Perfectionnements aux cornets avertisseurs Expired FR509023A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR509023T 1919-08-21

Publications (1)

Publication Number Publication Date
FR509023A true FR509023A (fr) 1920-10-29

Family

ID=8910767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR509023A Expired FR509023A (fr) 1919-08-21 1919-08-21 Perfectionnements aux cornets avertisseurs

Country Status (1)

Country Link
FR (1) FR509023A (fr)

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