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发明名称
Safety hook
摘要
申请公布号
US2978766(A)
申请公布日期
1961.04.11
申请号
US19580739927
申请日期
1958.06.04
申请人
ARNETT CHARLES L
发明人
ARNETT CHARLES L.
分类号
B66C1/36;F16G17/00
主分类号
B66C1/36
代理机构
代理人
主权项
地址
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