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发明名称
Improvements in clockwork-driven current-impulse transmitters for alarm installations
摘要
申请公布号
GB422673(A)
申请公布日期
1935.01.16
申请号
GB19340013424
申请日期
1934.05.03
申请人
ELEKTROZEIT AKTIENGESELLSCHAFT
发明人
分类号
G08B25/12
主分类号
G08B25/12
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