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发明名称
Astronomic dial for time switches
摘要
申请公布号
US2060991(A)
申请公布日期
1936.11.17
申请号
US19330670704
申请日期
1933.05.12
申请人
SANGAMO ELECTRIC COMPANY
发明人
HOLTZ FREDERICK C.
分类号
G04C23/34
主分类号
G04C23/34
代理机构
代理人
主权项
地址
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