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发明名称
Securing means
摘要
申请公布号
US2382947(A)
申请公布日期
1945.08.14
申请号
US19440546865
申请日期
1944.07.27
申请人
WALDES KOH-I-NOOR, INC.
发明人
BROZEK LAWRENCE
分类号
F16B21/18
主分类号
F16B21/18
代理机构
代理人
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