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经营范围
发明名称
Hoisting mechanism
摘要
申请公布号
US2149889(A)
申请公布日期
1939.03.07
申请号
US19360106850
申请日期
1936.10.21
申请人
SULLIVAN MACHINERY COMPANY
发明人
JOY JOSEPH F.
分类号
E21D15/60;E21F13/02
主分类号
E21D15/60
代理机构
代理人
主权项
地址
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