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发明名称
Locking device for nuts and screws
摘要
申请公布号
US1795570(A)
申请公布日期
1931.03.10
申请号
US19280306708
申请日期
1928.09.18
申请人
PATENTAKTIEBOLAGET VELOCK
发明人
NILSON NILS DAVID
分类号
F16B39/24
主分类号
F16B39/24
代理机构
代理人
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地址
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