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经营范围
发明名称
Siren rotor
摘要
申请公布号
US1772614(A)
申请公布日期
1930.08.12
申请号
US19290387247
申请日期
1929.08.20
申请人
MILES LESTER H
发明人
MILES LESTER H.
分类号
G10K7/00
主分类号
G10K7/00
代理机构
代理人
主权项
地址
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