FR881183A - Avertisseur sonore - Google Patents

Avertisseur sonore

Info

Publication number
FR881183A
FR881183A FR881183DA FR881183A FR 881183 A FR881183 A FR 881183A FR 881183D A FR881183D A FR 881183DA FR 881183 A FR881183 A FR 881183A
Authority
FR
France
Prior art keywords
buzzer
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.)
Kockums Mekaniska Verkstads AB
Original Assignee
Kockums Mekaniska Verkstads AB
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 Kockums Mekaniska Verkstads AB filed Critical Kockums Mekaniska Verkstads AB
Application granted granted Critical
Publication of FR881183A publication Critical patent/FR881183A/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
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR881183D 1939-03-18 1942-04-13 Avertisseur sonore Expired FR881183A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE881183X 1939-03-18

Publications (1)

Publication Number Publication Date
FR881183A true FR881183A (fr) 1943-04-16

Family

ID=20374392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR881183D Expired FR881183A (fr) 1939-03-18 1942-04-13 Avertisseur sonore

Country Status (1)

Country Link
FR (1) FR881183A (fr)

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