FR801848A - Perfectionnements aux sirènes - Google Patents

Perfectionnements aux sirènes

Info

Publication number
FR801848A
FR801848A FR801848DA FR801848A FR 801848 A FR801848 A FR 801848A FR 801848D A FR801848D A FR 801848DA FR 801848 A FR801848 A FR 801848A
Authority
FR
France
Prior art keywords
mermaid
refinements
mermaid refinements
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
Olof Ingemar Harald Ekman
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 FR801848A publication Critical patent/FR801848A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR801848D 1935-02-12 1936-02-12 Perfectionnements aux sirènes Expired FR801848A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE801848X 1935-02-12

Publications (1)

Publication Number Publication Date
FR801848A true FR801848A (fr) 1936-08-19

Family

ID=20342622

Family Applications (1)

Application Number Title Priority Date Filing Date
FR801848D Expired FR801848A (fr) 1935-02-12 1936-02-12 Perfectionnements aux sirènes

Country Status (1)

Country Link
FR (1) FR801848A (fr)

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