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发明名称
Method of closure manufacture
摘要
申请公布号
US2246096(A)
申请公布日期
1941.06.17
申请号
US19390303430
申请日期
1939.11.08
申请人
ALUMINUM COMPANY
发明人
HONGG EMERSON E.
分类号
B21D51/50
主分类号
B21D51/50
代理机构
代理人
主权项
地址
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