FR466169A - Device for operating transmitters of underwater hearing devices - Google Patents

Device for operating transmitters of underwater hearing devices

Info

Publication number
FR466169A
FR466169A FR466169DA FR466169A FR 466169 A FR466169 A FR 466169A FR 466169D A FR466169D A FR 466169DA FR 466169 A FR466169 A FR 466169A
Authority
FR
France
Prior art keywords
hearing devices
operating transmitters
underwater hearing
underwater
transmitters
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 FR466169A publication Critical patent/FR466169A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR466169D 1912-12-17 1913-12-13 Device for operating transmitters of underwater hearing devices Expired FR466169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE466169X 1912-12-17

Publications (1)

Publication Number Publication Date
FR466169A true FR466169A (en) 1914-05-06

Family

ID=1504963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR466169D Expired FR466169A (en) 1912-12-17 1913-12-13 Device for operating transmitters of underwater hearing devices

Country Status (1)

Country Link
FR (1) FR466169A (en)

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