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经营范围
发明名称
Timepiece and automobile horn button
摘要
申请公布号
US1925188(A)
申请公布日期
1933.09.05
申请号
US19310550262
申请日期
1931.07.11
申请人
HOLLINGSWORTH MAURICE H
发明人
HOLLINGSWORTH MAURICE H.
分类号
G04B47/00
主分类号
G04B47/00
代理机构
代理人
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地址
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