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经营范围
发明名称
EDGE HEATING IN ANNEALING PROCESS
摘要
申请公布号
US3508899(A)
申请公布日期
1970.04.28
申请号
USD3508899
申请日期
1969.03.21
申请人
PPG IND. INC.
发明人
CECIL R. WARD
分类号
C03B25/12;(IPC1-7):C03B25/00
主分类号
C03B25/12
代理机构
代理人
主权项
地址
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