FR490264A - Perfectionnements aux sifflets - Google Patents

Perfectionnements aux sifflets

Info

Publication number
FR490264A
FR490264A FR490264DA FR490264A FR 490264 A FR490264 A FR 490264A FR 490264D A FR490264D A FR 490264DA FR 490264 A FR490264 A FR 490264A
Authority
FR
France
Prior art keywords
whistle
refinements
whistle refinements
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
English (en)
Inventor
Charles Walter Lund
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 FR490264A publication Critical patent/FR490264A/fr
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
    • G10K5/00—Whistles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR490264D 1918-05-25 1918-05-25 Perfectionnements aux sifflets Expired FR490264A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR490264T 1918-05-25

Publications (1)

Publication Number Publication Date
FR490264A true FR490264A (fr) 1919-04-15

Family

ID=1526419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR490264D Expired FR490264A (fr) 1918-05-25 1918-05-25 Perfectionnements aux sifflets

Country Status (1)

Country Link
FR (1) FR490264A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005501A1 (fr) * 1991-08-30 1993-03-18 Wright Howard W Sifflet de securite et generateur de sons fonctionnant par tous les temps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005501A1 (fr) * 1991-08-30 1993-03-18 Wright Howard W Sifflet de securite et generateur de sons fonctionnant par tous les temps

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