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发明名称
Excavator construction
摘要
申请公布号
US1890727(A)
申请公布日期
1932.12.13
申请号
US19290406397
申请日期
1929.11.11
申请人
THE MARION STEAM SHOVEL COMPANY
发明人
FUNDOM EARL H.
分类号
E02F3/42
主分类号
E02F3/42
代理机构
代理人
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地址
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