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发明名称
Method of producing conical structures
摘要
申请公布号
US3149598(A)
申请公布日期
1964.09.22
申请号
US19610150837
申请日期
1961.11.07
申请人
REES BLOW PIPE MFG. CO.
发明人
REES FRANCES ELIZABETH;KRAUT CHARLES W.;SULLEY WILLIAM KENNETH EASTWOOD;EATON GEORGE HENRY
分类号
B21C37/18
主分类号
B21C37/18
代理机构
代理人
主权项
地址
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