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发明名称
Improvements in portable wireless signalling apparatus
摘要
申请公布号
GB468635(A)
申请公布日期
1937.07.08
申请号
GB19360000702
申请日期
1936.01.08
申请人
JULIUS PINTSCH AKTIENGESELLSCHAFT
发明人
分类号
H01J25/00;H01Q1/26;H01Q19/12
主分类号
H01J25/00
代理机构
代理人
主权项
地址
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