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发明名称
Excavating apparatus
摘要
申请公布号
US1920873(A)
申请公布日期
1933.08.01
申请号
US19320592356
申请日期
1932.02.11
申请人
TAYLOR WHARTON IRON & STEEL COMPANY
发明人
MACFADYEN LOUDON E.
分类号
E02F9/28
主分类号
E02F9/28
代理机构
代理人
主权项
地址
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