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经营范围
发明名称
FOAMED METAL
摘要
申请公布号
US3669654(A)
申请公布日期
1972.06.13
申请号
USD3669654
申请日期
1970.10.30
申请人
ETHYL CORP.
发明人
CURRIE B. BERRY JR.
分类号
C22C1/08;(IPC1-7):B31D3/00
主分类号
C22C1/08
代理机构
代理人
主权项
地址
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