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发明名称
Method for making cellular material
摘要
申请公布号
US3383207(A)
申请公布日期
1968.05.14
申请号
US19670655686
申请日期
1967.05.02
申请人
GENERAL ELECTRIC COMPANY
发明人
BUTTS WILLIAM R.
分类号
B21D47/00;B22F3/11
主分类号
B21D47/00
代理机构
代理人
主权项
地址
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