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发明名称
Lubricating oil
摘要
申请公布号
US1974778(A)
申请公布日期
1934.09.25
申请号
US19280317483
申请日期
1928.11.05
申请人
CROWN CENTRAL PETROLEUM CORPORATION
发明人
LANG FREDERICK R.
分类号
C10M171/00
主分类号
C10M171/00
代理机构
代理人
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地址
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