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发明名称
Maschine zum Polieren der Nadeloehre
摘要
申请公布号
DE549423(C)
申请公布日期
1932.04.27
申请号
DED549423D
申请日期
1930.01.23
申请人
THE SINGER MANUFACTURING COMPANY
发明人
分类号
B21G1/12
主分类号
B21G1/12
代理机构
代理人
主权项
地址
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