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经营范围
发明名称
Timing device
摘要
申请公布号
US2048198(A)
申请公布日期
1936.07.21
申请号
US19350025109
申请日期
1935.06.05
申请人
HARRY POWELL
发明人
POWELL HARRY
分类号
G04C23/16
主分类号
G04C23/16
代理机构
代理人
主权项
地址
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