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经营范围
发明名称
Method of electropolishing sterling silver
摘要
申请公布号
US2661330(A)
申请公布日期
1953.12.01
申请号
US19500191480
申请日期
1950.10.21
申请人
ARTHUR D. LITTLE, INC.
发明人
SULLIVAN FREDERICK
分类号
C25F3/22
主分类号
C25F3/22
代理机构
代理人
主权项
地址
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