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发明名称
Delay device
摘要
申请公布号
US2951906(A)
申请公布日期
1960.09.06
申请号
US19570639473
申请日期
1957.02.11
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
JR. THOMAS G. BROWN,
分类号
H01J25/78;H04B14/02
主分类号
H01J25/78
代理机构
代理人
主权项
地址
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