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发明名称
Apparatus for limiting the degree of subatmospheric pressures
摘要
申请公布号
US2588214(A)
申请公布日期
1952.03.04
申请号
US19470719885
申请日期
1947.01.02
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
DAWSON OLIVER H. P.
分类号
G01N25/14
主分类号
G01N25/14
代理机构
代理人
主权项
地址
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