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发明名称
Impulse signal transmission system
摘要
申请公布号
US2423087(A)
申请公布日期
1947.07.01
申请号
US19430480418
申请日期
1943.03.24
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
VRIENDT CHARLES DE
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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