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发明名称
METHOD AND APPARATUS FOR MOVING A MASS
摘要
申请公布号
EP1530546(A4)
申请公布日期
2011.08.03
申请号
EP20030731238
申请日期
2003.05.20
申请人
WESTMEYER, PAUL A.;MAZAHERI, RENEE
发明人
WESTMEYER, PAUL A.;MAZAHERI, RENEE
分类号
E21B7/26;E21B7/00;F41B3/04
主分类号
E21B7/26
代理机构
代理人
主权项
地址
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