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经营范围
发明名称
Combined cutter, agitator, and crusher for dredges
摘要
申请公布号
US2174323(A)
申请公布日期
1939.09.26
申请号
US19390261058
申请日期
1939.03.10
申请人
ISBELL PAUL Y
发明人
ISBELL PAUL Y.
分类号
E02F3/92
主分类号
E02F3/92
代理机构
代理人
主权项
地址
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