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发明名称
Process for the manufacture of hollow metal body
摘要
申请公布号
US2987798(A)
申请公布日期
1961.06.13
申请号
US19560605501
申请日期
1956.08.22
申请人
BARKWAY ENGINEERING COMPANY LIMITED
发明人
FROMONT GEORGE
分类号
B21K21/04
主分类号
B21K21/04
代理机构
代理人
主权项
地址
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