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发明名称
Toy multitone siren
摘要
申请公布号
US2204701(A)
申请公布日期
1940.06.18
申请号
US19390284587
申请日期
1939.07.15
申请人
HANSON ROBINSON
发明人
ROBINSON HANSON
分类号
A63H5/00;G10D9/04
主分类号
A63H5/00
代理机构
代理人
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