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发明名称
Safety device for hooks
摘要
申请公布号
US2263356(A)
申请公布日期
1941.11.18
申请号
US19410375675
申请日期
1941.01.23
申请人
INLAND STEEL COMPANY
发明人
HAIG PAUL
分类号
B66C1/36
主分类号
B66C1/36
代理机构
代理人
主权项
地址
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