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发明名称
Pour depressor
摘要
申请公布号
US2245639(A)
申请公布日期
1941.06.17
申请号
US19360096316
申请日期
1936.08.15
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
BARTLETT JEFFREY HOBART;ZADDE ARTHUR J.
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