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发明名称
Electric photometer
摘要
申请公布号
US2794361(A)
申请公布日期
1957.06.04
申请号
US19520320632
申请日期
1952.11.14
申请人
SHAFFER JR PHILIP A
发明人
JR. PHILIP A. SHAFFER,
分类号
G01N21/59
主分类号
G01N21/59
代理机构
代理人
主权项
地址
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