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发明名称
Electric etching apparatus
摘要
申请公布号
US2058365(A)
申请公布日期
1936.10.20
申请号
US19360069017
申请日期
1936.03.16
申请人
STARK HOWARD S
发明人
STARK HOWARD S.
分类号
C25F7/00
主分类号
C25F7/00
代理机构
代理人
主权项
地址
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