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发明名称
Windwerk
摘要
申请公布号
DE745159(C)
申请公布日期
1944.02.28
申请号
DE1941H167143D
申请日期
1941.12.20
申请人
EISENWERK WUELFEL
发明人
REITEMEYER HEINRICH
分类号
E21B19/00
主分类号
E21B19/00
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