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发明名称
EXCAVATING AND HOISTING MECHANISM
摘要
申请公布号
CA371197(A)
申请公布日期
1938.01.11
申请号
CAD371197
申请日期
申请人
GEORGE E. BALDRY
发明人
GEORGE E. BALDRY
分类号
主分类号
代理机构
代理人
主权项
地址
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