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经营范围
发明名称
Improvements in or relating to lock washers
摘要
申请公布号
GB458982(A)
申请公布日期
1936.12.31
申请号
GB19340009438
申请日期
1934.03.26
申请人
SHAKEPROOF LOCK WASHER COMPANY
发明人
分类号
F16B39/24
主分类号
F16B39/24
代理机构
代理人
主权项
地址
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