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发明名称
PROTECTION OF CEMENTS FROM EFFECTS OF CONTAMINATION
摘要
申请公布号
CA618085(A)
申请公布日期
1961.04.11
申请号
CAD618085
申请日期
申请人
GULF OIL CORPORATION
发明人
HORACE J. BEACH
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主分类号
代理机构
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