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发明名称
Safety pulley shackle
摘要
申请公布号
US2551803(A)
申请公布日期
1951.05.08
申请号
US19470755814
申请日期
1947.06.19
申请人
LEONARD WILLIAM R
发明人
LEONARD WILLIAM R.
分类号
B66D3/04
主分类号
B66D3/04
代理机构
代理人
主权项
地址
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