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经营范围
发明名称
Safety hook
摘要
申请公布号
US2872717(A)
申请公布日期
1959.02.10
申请号
US19550480805
申请日期
1955.01.10
申请人
KELLEY LEON P
发明人
KELLEY LEON P.
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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