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.)
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
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Physics & Mathematics
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Engineering & Computer Science
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Acoustics & Sound
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Multimedia
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Respiratory Apparatuses And Protective Means
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Optischer Schutzapparat zum Beobachten des Innern von gegen Einbruch oder Diebstahl zu sichernden Laeden o. dgl. mit mehreren unter einem Winkel gegeneinander geneigten Objektiven