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经营范围
发明名称
REFRACTORY CLAD LID FOR HEATING VESSEL
摘要
申请公布号
EP0361261(A3)
申请公布日期
1991.01.23
申请号
EP19890117226
申请日期
1989.09.18
申请人
PPG INDUSTRIES, INC.
发明人
SCHWENNINGER, RONALD LEE
分类号
C03B5/167;C03B5/12;C03B5/14;F27B14/00;F27B14/08;F27D1/12;F27D1/18;F27D3/00;F27D9/00;(IPC1-7):C03B3/00;C03B5/42;F27D1/02
主分类号
C03B5/167
代理机构
代理人
主权项
地址
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