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经营范围
发明名称
Spectacular dust indicator for airway sanitary cleaning systems
摘要
申请公布号
US2349832(A)
申请公布日期
1944.05.30
申请号
US19410415800
申请日期
1941.10.20
申请人
THE OHIO CITIZENS TRUST COMPANY
发明人
REPLOGLE CARL S.;QUEEN HAROLD E.;BULLOCK LAURIE H.
分类号
A47L9/19
主分类号
A47L9/19
代理机构
代理人
主权项
地址
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