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经营范围
发明名称
Improvements relating to nut and screw assemblies
摘要
申请公布号
GB731275(A)
申请公布日期
1955.06.08
申请号
GB19520016739
申请日期
1952.07.03
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
SAYCE LEONARD ALFRED
分类号
F16H25/24
主分类号
F16H25/24
代理机构
代理人
主权项
地址
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