FR438023A - Siren with several sounds produced by a single moving part - Google Patents

Siren with several sounds produced by a single moving part

Info

Publication number
FR438023A
FR438023A FR438023DA FR438023A FR 438023 A FR438023 A FR 438023A FR 438023D A FR438023D A FR 438023DA FR 438023 A FR438023 A FR 438023A
Authority
FR
France
Prior art keywords
siren
moving part
sounds produced
single moving
several sounds
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
Rene Varret
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.)
RENE VARRET
Original Assignee
RENE VARRET
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 RENE VARRET filed Critical RENE VARRET
Application granted granted Critical
Publication of FR438023A publication Critical patent/FR438023A/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
FR438023D 1911-03-04 1911-03-04 Siren with several sounds produced by a single moving part Expired FR438023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR438023T 1911-03-04

Publications (1)

Publication Number Publication Date
FR438023A true FR438023A (en) 1912-05-06

Family

ID=1479581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR438023D Expired FR438023A (en) 1911-03-04 1911-03-04 Siren with several sounds produced by a single moving part

Country Status (1)

Country Link
FR (1) FR438023A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121319A2 (en) * 1983-03-31 1984-10-10 Southern California Edison Company Siren
US4807203A (en) * 1983-03-31 1989-02-21 Southern California Edison Co. Siren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121319A2 (en) * 1983-03-31 1984-10-10 Southern California Edison Company Siren
EP0121319A3 (en) * 1983-03-31 1987-03-18 Southern California Edison Company Siren
US4807203A (en) * 1983-03-31 1989-02-21 Southern California Edison Co. Siren

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