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经营范围
发明名称
Tragschrauben,System Beger
摘要
申请公布号
DE1531381(A1)
申请公布日期
1969.07.31
申请号
DE19671531381
申请日期
1967.12.04
申请人
BEGER,OTTO
发明人
BEGER,OTTO
分类号
B64C27/473
主分类号
B64C27/473
代理机构
代理人
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