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发明名称
Apparatus for working sheet metal blanks
摘要
申请公布号
US2240090(A)
申请公布日期
1941.04.29
申请号
US19350046385
申请日期
1935.10.23
申请人
PACKARD MOTOR CAR COMPANY
发明人
CHRISTMAN JOHN M.
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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