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发明名称
SOIL CUTTING AND LIFTING MACHINE
摘要
申请公布号
CA440456(A)
申请公布日期
1947.04.01
申请号
CAD440456
申请日期
申请人
ARTHUR CLIFFORD HOWARD;EDWARD NOEL GRIFFITH
发明人
EDWARD NOEL GRIFFITH;ARTHUR CLIFFORD HOWARD
分类号
主分类号
代理机构
代理人
主权项
地址
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