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FR511854A - Electromagnetic sound-producing device - Google Patents

Electromagnetic sound-producing device

Info

Publication number
FR511854A
FR511854A FR511854A FR511854DA FR511854A FR 511854 A FR511854 A FR 511854A FR 511854 A FR511854 A FR 511854A FR 511854D A FR511854D A FR 511854DA FR 511854 A FR511854 A FR 511854A
Authority
FR
France
Prior art keywords
producing device
electromagnetic sound
sound
electromagnetic
producing
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
FR511854A
Other languages
French (fr)
Inventor
Joseph Bethenod
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 FR511854A publication Critical patent/FR511854A/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
    • G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR511854A 1919-05-20 1919-05-20 Electromagnetic sound-producing device Expired FR511854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR511854T 1919-05-20

Publications (1)

Publication Number Publication Date
FR511854A true FR511854A (en) 1921-01-06

Family

ID=8912592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR511854A Expired FR511854A (en) 1919-05-20 1919-05-20 Electromagnetic sound-producing device

Country Status (1)

Country Link
FR (1) FR511854A (en)

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