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发明名称
Photoelectric system for measuring the density of smoke
摘要
申请公布号
US3251999(A)
申请公布日期
1966.05.17
申请号
US19620239895
申请日期
1962.11.26
申请人
OSCAR MAYER & COMPANY, INC.
发明人
MIDDLETON FREDERIC H.;WANDEL ROBERT H.;VALESH JAMES A.
分类号
G01N21/15
主分类号
G01N21/15
代理机构
代理人
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地址
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