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发明名称
Control apparatus
摘要
申请公布号
US1946743(A)
申请公布日期
1934.02.13
申请号
US19270240861
申请日期
1927.12.17
申请人
RADIO CORPORATION OF AMERICA
发明人
JR. HERMAN HOLLERITH,
分类号
F26B3/00;H03J1/18
主分类号
F26B3/00
代理机构
代理人
主权项
地址
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