FR837711A - Acoustic signal - Google Patents

Acoustic signal

Info

Publication number
FR837711A
FR837711A FR837711DA FR837711A FR 837711 A FR837711 A FR 837711A FR 837711D A FR837711D A FR 837711DA FR 837711 A FR837711 A FR 837711A
Authority
FR
France
Prior art keywords
acoustic signal
acoustic
signal
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
Max Greiner
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 FR837711A publication Critical patent/FR837711A/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
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR837711D 1937-09-21 1938-05-07 Acoustic signal Expired FR837711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE837711X 1937-09-21

Publications (1)

Publication Number Publication Date
FR837711A true FR837711A (en) 1939-02-20

Family

ID=6761488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR837711D Expired FR837711A (en) 1937-09-21 1938-05-07 Acoustic signal

Country Status (1)

Country Link
FR (1) FR837711A (en)

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