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发明名称
Control system for hydraulic dredges
摘要
申请公布号
US2461311(A)
申请公布日期
1949.02.08
申请号
US19450637946
申请日期
1945.12.29
申请人
HYDRAULIC DREDGING COMPANY, LTD.
发明人
CUSHING PAUL J.;ENRIGHT PAUL M.
分类号
E02F3/90
主分类号
E02F3/90
代理机构
代理人
主权项
地址
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