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发明名称
THROUGH HOLE INNER WALL EXPOSURE MEANS
摘要
申请公布号
JPH04206892(A)
申请公布日期
1992.07.28
申请号
JP19900337482
申请日期
1990.11.30
申请人
MITSUBISHI ELECTRIC CORP
发明人
KAWATSU AKINOBU
分类号
G03F7/20;H05K3/00;H05K3/06
主分类号
G03F7/20
代理机构
代理人
主权项
地址
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