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发明名称
Lock gate
摘要
申请公布号
US2040721(A)
申请公布日期
1936.05.12
申请号
US19320624679D
申请日期
1932.07.26
申请人
THE FIRM VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT
发明人
ZIMMERMANN HANS
分类号
E02B7/20
主分类号
E02B7/20
代理机构
代理人
主权项
地址
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