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发明名称
Perfectionnement aux huiles lubrifiantes
摘要
申请公布号
FR805809(A)
申请公布日期
1936.12.01
申请号
FRD805809
申请日期
1935.08.16
申请人
DESMARAIS FRERES
发明人
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主分类号
代理机构
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