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经营范围
发明名称
UNITARY,RIGID,SELF-SUPPORTING,GAS PERMEABLE,LOW TEMPERATURE BONDED,SAND GRAIN MOLD WITH GAS COLLECTION VOIDS
摘要
申请公布号
IN168360(B)
申请公布日期
1991.03.16
申请号
IN1988MA89619
申请日期
1988.12.16
申请人
GENERAL MOTORS CORP.
发明人
GEORGE D.CHANDLEY
分类号
B22C9/00;(IPC1-7):B22C9/00
主分类号
B22C9/00
代理机构
代理人
主权项
地址
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