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发明名称
Impulse counting relay
摘要
申请公布号
US2564432(A)
申请公布日期
1951.08.14
申请号
US19490107156
申请日期
1949.07.28
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HICKMAN CLARENCE N.
分类号
H03K23/74
主分类号
H03K23/74
代理机构
代理人
主权项
地址
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