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发明名称
Indexing means
摘要
申请公布号
US2275284(A)
申请公布日期
1942.03.03
申请号
US19400352509
申请日期
1940.08.14
申请人
RADIO CORPORATION
发明人
CARLSON WENDELL L.
分类号
H03J5/06
主分类号
H03J5/06
代理机构
代理人
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地址
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