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经营范围
发明名称
VAPOUR PRESSURE INDICATOR DEVICE
摘要
申请公布号
CA431421(A)
申请公布日期
1945.11.20
申请号
CAD431421
申请日期
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
DONALD L. CAMPBELL
分类号
主分类号
代理机构
代理人
主权项
地址
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