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发明名称
Apparatus and method for driving pile shells
摘要
申请公布号
US1865653(A)
申请公布日期
1932.07.05
申请号
US19300476608
申请日期
1930.08.20
申请人
RAYMOND CONCRETE PILE COMPANY
发明人
UPSON MAXWELL M.;WATT ELIHU D.
分类号
E02D7/30
主分类号
E02D7/30
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