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发明名称
Material working apparatus
摘要
申请公布号
US2321707(A)
申请公布日期
1943.06.15
申请号
US19400337618
申请日期
1940.05.28
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
SHANNON CARLISLE
分类号
B21G3/16;B21K1/58
主分类号
B21G3/16
代理机构
代理人
主权项
地址
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