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发明名称
Polycellular tubular grid structures and method of manufacture
摘要
申请公布号
US3222144(A)
申请公布日期
1965.12.07
申请号
US19630260929
申请日期
1963.02.25
申请人
DAVENPORT DONALD E
发明人
DAVENPORT DONALD E.
分类号
B21D26/08;C22B1/20;F27B21/06
主分类号
B21D26/08
代理机构
代理人
主权项
地址
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