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发明名称
Bohrkopf fuer Spuelbohrungen
摘要
申请公布号
DE1207905(B)
申请公布日期
1965.12.30
申请号
DE1964ST22722
申请日期
1964.09.25
申请人
DR.-ING. WOLFGANG STAENDER
发明人
STAENDER DR.-ING. WOLFGANG
分类号
E21B7/06;E21B7/08;E21B7/18;E21B21/00
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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