FR412657A - Improvements to sound producing apparatus for sirens and other similar instruments - Google Patents

Improvements to sound producing apparatus for sirens and other similar instruments

Info

Publication number
FR412657A
FR412657A FR412657DA FR412657A FR 412657 A FR412657 A FR 412657A FR 412657D A FR412657D A FR 412657DA FR 412657 A FR412657 A FR 412657A
Authority
FR
France
Prior art keywords
sirens
producing apparatus
sound producing
similar instruments
instruments
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)
Inventor
John Pell Northey
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR412657A publication Critical patent/FR412657A/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
    • G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR412657D 1910-02-15 1910-02-15 Improvements to sound producing apparatus for sirens and other similar instruments Expired FR412657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR412657T 1910-02-15

Publications (1)

Publication Number Publication Date
FR412657A true FR412657A (en) 1910-07-19

Family

ID=1456502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR412657D Expired FR412657A (en) 1910-02-15 1910-02-15 Improvements to sound producing apparatus for sirens and other similar instruments

Country Status (1)

Country Link
FR (1) FR412657A (en)

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