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经营范围
发明名称
ETCHING OF ALUMINUM FOIL
摘要
申请公布号
CA785743(A)
申请公布日期
1968.05.21
申请号
CAD785743
申请日期
申请人
SPRAGUE ELECTRIC COMPANY
发明人
CHARLES E. WELCH, JR.
分类号
主分类号
代理机构
代理人
主权项
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