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发明名称
Method of grinding an ornamental chain
摘要
申请公布号
US2711069(A)
申请公布日期
1955.06.21
申请号
US19510240560
申请日期
1951.08.06
申请人
ARMBRUST CHAIN CORPORATION
发明人
ARMBRUST FERDINAND
分类号
B21L15/00;B24B19/00
主分类号
B21L15/00
代理机构
代理人
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地址
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