FR432510A - Device for the transmission of acoustic signals in water, by means of a siren - Google Patents

Device for the transmission of acoustic signals in water, by means of a siren

Info

Publication number
FR432510A
FR432510A FR432510DA FR432510A FR 432510 A FR432510 A FR 432510A FR 432510D A FR432510D A FR 432510DA FR 432510 A FR432510 A FR 432510A
Authority
FR
France
Prior art keywords
siren
transmission
water
acoustic signals
acoustic
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
French (fr)
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.)
Signal GmbH
Original Assignee
Signal 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 Signal GmbH filed Critical Signal GmbH
Application granted granted Critical
Publication of FR432510A publication Critical patent/FR432510A/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR432510D 1911-06-24 1911-07-24 Device for the transmission of acoustic signals in water, by means of a siren Expired FR432510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE432510X 1911-06-24

Publications (1)

Publication Number Publication Date
FR432510A true FR432510A (en) 1911-12-08

Family

ID=1474585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR432510D Expired FR432510A (en) 1911-06-24 1911-07-24 Device for the transmission of acoustic signals in water, by means of a siren

Country Status (1)

Country Link
FR (1) FR432510A (en)

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