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发明名称
Method of and apparatus for flattening sheet material
摘要
申请公布号
US2180879(A)
申请公布日期
1939.11.21
申请号
US19350044537
申请日期
1935.10.11
申请人
ALUMINUM COMPANY OF AMERICA
发明人
MCFADDEN BENJAMIN C.
分类号
B21D1/02
主分类号
B21D1/02
代理机构
代理人
主权项
地址
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