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发明名称
Improvements in polarised a.c. ringers
摘要
申请公布号
GB838202(A)
申请公布日期
1960.06.22
申请号
GB19580000702
申请日期
1958.01.08
申请人
ERICSSON TELEPHONES LIMITED
发明人
EDWARDS HUW BRYANT;ANDERSON VICTOR MICHAEL
分类号
G10K1/062
主分类号
G10K1/062
代理机构
代理人
主权项
地址
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