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发明名称
Timing circuits
摘要
申请公布号
US2782256(A)
申请公布日期
1957.02.19
申请号
US19530340472
申请日期
1953.03.05
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MALTHANER WILLIAM A.
分类号
H04M3/12;H04M3/36;H04Q3/54
主分类号
H04M3/12
代理机构
代理人
主权项
地址
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