FR787797A - émetteur de son aérien - Google Patents

émetteur de son aérien

Info

Publication number
FR787797A
FR787797A FR787797DA FR787797A FR 787797 A FR787797 A FR 787797A FR 787797D A FR787797D A FR 787797DA FR 787797 A FR787797 A FR 787797A
Authority
FR
France
Prior art keywords
sound transmitter
aerial sound
aerial
transmitter
sound
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic GmbH
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 ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Application granted granted Critical
Publication of FR787797A publication Critical patent/FR787797A/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)
FR787797D 1935-03-11 1935-03-25 émetteur de son aérien Expired FR787797A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE787797X 1935-03-11

Publications (1)

Publication Number Publication Date
FR787797A true FR787797A (fr) 1935-09-28

Family

ID=6699325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787797D Expired FR787797A (fr) 1935-03-11 1935-03-25 émetteur de son aérien

Country Status (1)

Country Link
FR (1) FR787797A (fr)

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