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经营范围
发明名称
Improvements in or relating to a one-revolution clutch mechanism and a secondary clock mechanism
摘要
申请公布号
GB674721(A)
申请公布日期
1952.07.02
申请号
GB19490000474
申请日期
1949.01.07
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G04C11/06
主分类号
G04C11/06
代理机构
代理人
主权项
地址
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