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发明名称
Improvements in electrical spark machining devices
摘要
申请公布号
GB782443(A)
申请公布日期
1957.09.04
申请号
GB19550003447
申请日期
1955.02.04
申请人
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
发明人
分类号
B23H1/02
主分类号
B23H1/02
代理机构
代理人
主权项
地址
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