[go: up one dir, main page]

FR1222721A - Sirène de forte amplitude sonore - Google Patents

Sirène de forte amplitude sonore

Info

Publication number
FR1222721A
FR1222721A FR784594A FR784594A FR1222721A FR 1222721 A FR1222721 A FR 1222721A FR 784594 A FR784594 A FR 784594A FR 784594 A FR784594 A FR 784594A FR 1222721 A FR1222721 A FR 1222721A
Authority
FR
France
Prior art keywords
siren
high amplitude
amplitude
amplitude siren
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
FR784594A
Other languages
English (en)
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.)
Const Electr L M
Original Assignee
Const Electr L M
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 Const Electr L M filed Critical Const Electr L M
Priority to FR784594A priority Critical patent/FR1222721A/fr
Application granted granted Critical
Publication of FR1222721A publication Critical patent/FR1222721A/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
    • G10K7/00—Sirens
    • G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor
    • G10K7/04—Sirens in which the sound-producing member is rotated manually or by a motor by an electric motor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR784594A 1959-01-21 1959-01-21 Sirène de forte amplitude sonore Expired FR1222721A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR784594A FR1222721A (fr) 1959-01-21 1959-01-21 Sirène de forte amplitude sonore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR784594A FR1222721A (fr) 1959-01-21 1959-01-21 Sirène de forte amplitude sonore

Publications (1)

Publication Number Publication Date
FR1222721A true FR1222721A (fr) 1960-06-13

Family

ID=8710367

Family Applications (1)

Application Number Title Priority Date Filing Date
FR784594A Expired FR1222721A (fr) 1959-01-21 1959-01-21 Sirène de forte amplitude sonore

Country Status (1)

Country Link
FR (1) FR1222721A (fr)

Similar Documents

Publication Publication Date Title
CH386123A (de) Messwertumformer
FR1251724A (fr) Générateur de faisceaux électroniques
FR1248318A (fr) Avertisseur
DK107360C (da) Frekvensdeler.
FR1204858A (fr) Appareillage de turbine
FR1226086A (fr) Poutre
FR1246675A (fr) Appareillage de turbine
FR1224972A (fr) Planeuse-polisseuse de métallogénie
DD26780A5 (de) Trommelstock
CH408485A (de) Vibrationsvorrichtung
FR1247283A (fr) Appareillage de turbine
FR1222721A (fr) Sirène de forte amplitude sonore
FR1257405A (fr) Appareil modificateur de fréquence
CH378942A (de) Amplitudensieb
CH372207A (de) Plansichter
FR1253283A (fr) Moellon
FR1227722A (fr) Signal de pré-stationnement
FR1225311A (fr) Poutre en encorbellement
FR1315010A (fr) Dispositif de suspension
ES76874Y (es) Bocina
ES81740Y (es) Sirena
FR1247535A (fr) Violon
AT219942B (de) Plansichter
FR1276188A (fr) Générateur de signaux périodiques
FR1242773A (fr) Dispositif de tamisage