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发明名称
Direct-current pressure-splitting device
摘要
申请公布号
US1759759(A)
申请公布日期
1930.05.20
申请号
US19210519558
申请日期
1921.12.02
申请人
DELLA RICCIA ANGELO
发明人
RICCIA ANGELO DELLA
分类号
H02J1/08
主分类号
H02J1/08
代理机构
代理人
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地址
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