FR416085A - 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
FR416085A
FR416085A FR416085DA FR416085A FR 416085 A FR416085 A FR 416085A FR 416085D A FR416085D A FR 416085DA FR 416085 A FR416085 A FR 416085A
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 FR416085A publication Critical patent/FR416085A/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)
FR416085D 1910-05-18 1910-05-18 Improvements to sound producing apparatus for sirens and other similar instruments Expired FR416085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR416085T 1910-05-18

Publications (1)

Publication Number Publication Date
FR416085A true FR416085A (en) 1910-10-11

Family

ID=1459618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416085D Expired FR416085A (en) 1910-05-18 1910-05-18 Improvements to sound producing apparatus for sirens and other similar instruments

Country Status (1)

Country Link
FR (1) FR416085A (en)

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