Title:
Steam operated horn
United States Patent 2434175
Inventors:
Ozols, Karlis V.
Publication Date:
01/06/1948
Export Citation:
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Assignee:
Ozols, Karlis V.
Primary Class:
116/147
Other Classes:
116/137R, 116/142R, 137/494, 137/624.14
International Classes:
G10K9/04; G10K9/00
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US Patent References:
2019596Acoustic signaling apparatus
1844226Sound producing device
1653119Device for forming far-reaching sound pencils and application of latter
1624873Sound reflector
1522095Amplifying horn
1486650N/A
1289065N/A
0606668N/A