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发明名称
Signal generator
摘要
申请公布号
US2195853(A)
申请公布日期
1940.04.02
申请号
US19360113591
申请日期
1936.12.01
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
FITCH CLYDE J.
分类号
H03H11/22;H03K5/1536;H04J3/04;H04L5/24;H04L13/14
主分类号
H03H11/22
代理机构
代理人
主权项
地址
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