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发明名称
Verfahren zur Herstellung von Grammophonnadeln.
摘要
申请公布号
AT119634(B)
申请公布日期
1930.11.10
申请号
ATD119634
申请日期
1929.05.23
申请人
CHARLES NORMAN MATHESON RAMSAY
发明人
CHARLES NORMAN MATHESON RAMSAY
分类号
主分类号
代理机构
代理人
主权项
地址
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