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经营范围
发明名称
Metal drawing apparatus
摘要
申请公布号
US2101959(A)
申请公布日期
1937.12.14
申请号
US19330685479
申请日期
1933.08.16
申请人
JULIUS KAHN
发明人
SCHULZ WALTER F.
分类号
B21C3/08
主分类号
B21C3/08
代理机构
代理人
主权项
地址
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