FR411195A - Improvements to submarine signal transmission devices - Google Patents

Improvements to submarine signal transmission devices

Info

Publication number
FR411195A
FR411195A FR411195DA FR411195A FR 411195 A FR411195 A FR 411195A FR 411195D A FR411195D A FR 411195DA FR 411195 A FR411195 A FR 411195A
Authority
FR
France
Prior art keywords
signal transmission
transmission devices
submarine signal
submarine
devices
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR411195A publication Critical patent/FR411195A/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)
FR411195D 1909-12-31 1909-12-31 Improvements to submarine signal transmission devices Expired FR411195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR411195T 1909-12-31

Publications (1)

Publication Number Publication Date
FR411195A true FR411195A (en) 1910-06-09

Family

ID=1455160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR411195D Expired FR411195A (en) 1909-12-31 1909-12-31 Improvements to submarine signal transmission devices

Country Status (1)

Country Link
FR (1) FR411195A (en)

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