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发明名称
HEATING VESSEL LID CONSTRUCTION
摘要
申请公布号
ZA8907973(B)
申请公布日期
1990.06.27
申请号
ZA19890007973
申请日期
1989.10.20
申请人
PPG INDUSTRIES INC.
发明人
GERALD ERASMUS KUNKLE;GEORGE ANTHONY PECORARO;HENRY MARTIN DEMAREST JR.;GARY NOEL HUGHES
分类号
C03B
主分类号
C03B
代理机构
代理人
主权项
地址
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