FR50120E - Perfectionnements aux avertisseurs sonores - Google Patents

Perfectionnements aux avertisseurs sonores

Info

Publication number
FR50120E
FR50120E FR50120DA FR50120E FR 50120 E FR50120 E FR 50120E FR 50120D A FR50120D A FR 50120DA FR 50120 E FR50120 E FR 50120E
Authority
FR
France
Prior art keywords
audible warning
warning devices
audible
devices
warning
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)
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.)
Klaxon SA
Original Assignee
Klaxon SA
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 Klaxon SA filed Critical Klaxon SA
Application granted granted Critical
Publication of FR50120E publication Critical patent/FR50120E/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)
FR50120D 1938-08-12 1938-08-12 Perfectionnements aux avertisseurs sonores Expired FR50120E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50120T 1938-08-12

Publications (1)

Publication Number Publication Date
FR50120E true FR50120E (fr) 1939-12-13

Family

ID=8685163

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50120D Expired FR50120E (fr) 1938-08-12 1938-08-12 Perfectionnements aux avertisseurs sonores

Country Status (1)

Country Link
FR (1) FR50120E (fr)

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