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发明名称
Method and apparatus for producing perforated metal webs
摘要
申请公布号
US2762149(A)
申请公布日期
1956.09.11
申请号
US19530351127
申请日期
1953.04.27
申请人
BUCKBEE-MEARS COMPANY
发明人
MEARS NORMAN B.
分类号
C23F1/08;G03F7/30;H01J9/14
主分类号
C23F1/08
代理机构
代理人
主权项
地址
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