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经营范围
发明名称
Improvements in or relating to pulse modulation systems
摘要
申请公布号
GB535701(A)
申请公布日期
1941.04.18
申请号
GB19390027849
申请日期
1939.10.13
申请人
STANDARD TELEPHONES AND CABLES LIMITED;WILLIAM ARNOLD BEATTY;CHARLES THOMAS SCULLY
发明人
分类号
H01J31/04;H03K7/00
主分类号
H01J31/04
代理机构
代理人
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