FR493927A - Double siren - Google Patents

Double siren

Info

Publication number
FR493927A
FR493927A FR493927DA FR493927A FR 493927 A FR493927 A FR 493927A FR 493927D A FR493927D A FR 493927DA FR 493927 A FR493927 A FR 493927A
Authority
FR
France
Prior art keywords
siren
double
double siren
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
Emile Bossong
Jules Bulte
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.)
EMILE BOSSONG
JULES BULTE
Original Assignee
EMILE BOSSONG
JULES BULTE
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 EMILE BOSSONG, JULES BULTE filed Critical EMILE BOSSONG
Application granted granted Critical
Publication of FR493927A publication Critical patent/FR493927A/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
FR493927D 1917-12-14 1917-12-14 Double siren Expired FR493927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR493927T 1917-12-14

Publications (1)

Publication Number Publication Date
FR493927A true FR493927A (en) 1919-08-26

Family

ID=1529624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR493927D Expired FR493927A (en) 1917-12-14 1917-12-14 Double siren

Country Status (1)

Country Link
FR (1) FR493927A (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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