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发明名称
Acid resist powder for use in etching
摘要
申请公布号
US2168756(A)
申请公布日期
1939.08.08
申请号
US19380206338
申请日期
1938.05.09
申请人
MALLINCKRODT CHEMICAL WORKS
发明人
ALNUTT DONALD B.
分类号
G03F7/40;H05K3/06
主分类号
G03F7/40
代理机构
代理人
主权项
地址
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