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发明名称
Improvements in or relating to television channel switches
摘要
申请公布号
GB906816(A)
申请公布日期
1962.09.26
申请号
GB19610026214
申请日期
1961.07.19
申请人
WALTER PREH;AGNES PREH
发明人
分类号
H03J1/14;H03J5/04;H03J5/10
主分类号
H03J1/14
代理机构
代理人
主权项
地址
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