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发明名称
EARTH STRATA INDICATOR
摘要
申请公布号
CA554330(A)
申请公布日期
1958.03.11
申请号
CAD554330
申请日期
申请人
UNION CARBIDE AND CARBON CORPORATION
发明人
GEORGE T. FELBECK;GRAHAM COOK;ROBERT R. COSNER
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主分类号
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