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发明名称
Improvements in television studios
摘要
申请公布号
GB629239(A)
申请公布日期
1949.09.15
申请号
GB19450029383
申请日期
1945.11.05
申请人
CHRISTOPHER SPURRIER
发明人
分类号
H04N5/222
主分类号
H04N5/222
代理机构
代理人
主权项
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