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经营范围
发明名称
Cleaning water surfaces
摘要
申请公布号
US3314545(A)
申请公布日期
1967.04.18
申请号
US19630323685
申请日期
1963.11.14
申请人
FRIEDBERT GRABBE;KARL HINTERSDORF
发明人
GRABBE FRIEDBERT;HINTERSDORF KARL
分类号
E02B8/02;E02B15/04;E02B15/10
主分类号
E02B8/02
代理机构
代理人
主权项
地址
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