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发明名称
I-HULLET-BOREMOTOR.
摘要
申请公布号
NO156763(B)
申请公布日期
1987.08.10
申请号
NO19810001043
申请日期
1981.03.26
申请人
ZAHNRADFABRIK FRIEDRICHSHAFEN AKTIENGESELLSCHAFT
发明人
SCHULZ, HORST;WINKELMANN, SIEGFRIED
分类号
E21B4/02;E21B4/00;(IPC1-7):E21B4/02;F03B13/02
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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