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发明名称
Steuerbare Vortriebseinrichtung
摘要
申请公布号
DE502005004501(D1)
申请公布日期
2008.08.07
申请号
DE200550004501T
申请日期
2005.07.26
申请人
ALBRECHT, WALTER
发明人
ALBRECHT, WALTER
分类号
E21B7/06;E21B7/20
主分类号
E21B7/06
代理机构
代理人
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