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发明名称
Jewelry finding
摘要
申请公布号
US2098104(A)
申请公布日期
1937.11.02
申请号
US19350045466
申请日期
1935.10.17
申请人
B. A. BALLOU & CO., INC.
发明人
MOREHOUSE EUGENE
分类号
B21D53/44
主分类号
B21D53/44
代理机构
代理人
主权项
地址
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