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经营范围
发明名称
Improvements in or relating to floating dredgers
摘要
申请公布号
GB336873(A)
申请公布日期
1930.10.23
申请号
GB19290038808
申请日期
1929.12.18
申请人
FRIED. KRUPP GRUSONWERK AKTIENGESELLSCHAFT;LE PROGRES MINIER ET METALLURGIQUE SOCIETE ANONYME
发明人
分类号
E02F9/06
主分类号
E02F9/06
代理机构
代理人
主权项
地址
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