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发明名称
Method of making metallic disk structures
摘要
申请公布号
US2432842(A)
申请公布日期
1947.12.16
申请号
US19440518734
申请日期
1944.01.06
申请人
S. K. WELLMAN COMPANY
发明人
WELLMAN SAMUEL K.
分类号
B21D13/02
主分类号
B21D13/02
代理机构
代理人
主权项
地址
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