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经营范围
发明名称
Improvements in rotary swaging machines
摘要
申请公布号
GB622389(A)
申请公布日期
1949.05.02
申请号
GB19470007409
申请日期
1947.03.18
申请人
SAMUEL SMITH
发明人
分类号
B21J7/14
主分类号
B21J7/14
代理机构
代理人
主权项
地址
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