发明名称 |
Reverberating mechanical siren |
摘要 |
A small light mechanical siren for mobile emergency equipment which utilize spiral rebound ramps in the rotor to produce a loud penetrating square form spiral sound wave enabling effective warning without contributing to noise pollution.
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申请公布号 |
US2004200401(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20030409002 |
申请日期 |
2003.04.08 |
申请人 |
GIEBELER JAMES FREDERICK |
发明人 |
GIEBELER JAMES FREDERICK |
分类号 |
G10K7/04;(IPC1-7):G10K7/04 |
主分类号 |
G10K7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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