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发明名称
HOISTING APPARATUS SAFETY APPLIANCE
摘要
申请公布号
CA438536(A)
申请公布日期
1946.12.10
申请号
CAD438536
申请日期
申请人
JAMES DAVENPORT
发明人
LEONARD J. QUINN
分类号
主分类号
代理机构
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