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发明名称
WELL DRILLING COMPOSITION AND METHOD OF MANUFACTURE THEREOF
摘要
申请公布号
CA531768(A)
申请公布日期
1956.10.16
申请号
CAD531768
申请日期
申请人
COLUMBIA-SOUTHERN CHEMICAL CORPORATION
发明人
HENRY W. RAHN
分类号
主分类号
代理机构
代理人
主权项
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