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经营范围
发明名称
Electrostatic generator
摘要
申请公布号
US1991236(A)
申请公布日期
1935.02.12
申请号
US19310581499
申请日期
1931.12.16
申请人
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人
GRAAFF ROBERT J. VAN DE
分类号
H02N1/12
主分类号
H02N1/12
代理机构
代理人
主权项
地址
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