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经营范围
发明名称
Metalworking apparatus
摘要
申请公布号
US2266418(A)
申请公布日期
1941.12.16
申请号
US19370158182
申请日期
1937.08.09
申请人
EVANS MARTIN E
发明人
EVANS MARTIN E.
分类号
B21B1/42
主分类号
B21B1/42
代理机构
代理人
主权项
地址
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