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经营范围
发明名称
Safety hook
摘要
申请公布号
US3121274(A)
申请公布日期
1964.02.18
申请号
US19610117584
申请日期
1961.06.16
申请人
EVANS CHARLES S
发明人
EVANS CHARLES S.
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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