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发明名称
OELKANNE, INSBESONDERE FUER DEN BERGBAU.
摘要
申请公布号
DE1640908(U)
申请公布日期
1952.07.17
申请号
DE194900M0467U
申请日期
1949.11.20
申请人
KARL MUEHLENBECK
发明人
KARL MUEHLENBECK
分类号
主分类号
代理机构
代理人
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