FR837711A - Signal acoustique - Google Patents

Signal acoustique

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
English (en)
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/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)
FR837711D 1937-09-21 1938-05-07 Signal acoustique Expired FR837711A (fr)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=6761488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR837711D Expired FR837711A (fr) 1937-09-21 1938-05-07 Signal acoustique

Country Status (1)

Country Link
FR (1) FR837711A (fr)

Similar Documents

Publication Publication Date Title
FR920293A (fr) Microphone
FR820036A (fr) Ravier
FI18708A (fi) Kappsäck
FR844299A (fr) Dispositifs acoustiques
FR837711A (fr) Signal acoustique
FR832479A (fr) Avertisseur acoustique
DK56184C (da) Akustisk Signalapparat.
FR830432A (fr) Piano
FR822718A (fr) Hourdis
FI20273A (fi) Sirén
FR822687A (fr) Chaussure-botte
FR819452A (fr) éclipseur
FI18661A (fi) Reservoarpenna
FI19440A (fi) Centralograf
FI18436A (fi) Velocipedstöd
FI18439A (fi) Gastryckspåverkat eldvapen
FI18450A (fi) Varpstickningsmaskin
FI18500A (fi) Fjädermotor
FI18520A (fi) Stående låg- och högtryckspanna
FI18542A (fi) Märkyxa
FI18589A (fi) Stavformigt hålformskrut
FI18600A (fi) Ångalstrare
FI18609A (fi) Fjädrande hjul
FI18412A (fi) Ångkraftanläggning
FI18344A (fi) Tvåtaktsförbränningsmotor