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发明名称
Improvements in or relating to electro-mechanical transducers
摘要
申请公布号
GB887714(A)
申请公布日期
1962.01.24
申请号
GB19570014048
申请日期
1957.05.02
申请人
S. SMITH & SONS (ENCLAND) LIMITED
发明人
WORSTER NORMAN GEORGE
分类号
H01H53/015
主分类号
H01H53/015
代理机构
代理人
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