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发明名称
Locking device for screw nuts and screw heads
摘要
申请公布号
GB433699(A)
申请公布日期
1935.08.19
申请号
GB19330032152
申请日期
1933.11.17
申请人
MATHILDE HARAN
发明人
分类号
F16B39/36
主分类号
F16B39/36
代理机构
代理人
主权项
地址
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