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发明名称
Improvements in or relating to telephone transducers
摘要
申请公布号
GB560586(A)
申请公布日期
1944.04.11
申请号
GB19430003166
申请日期
1943.02.26
申请人
STANDARD TELEPHONES AND CABLES, LIMITED
发明人
分类号
H04M1/15;H04R1/04;H04R1/10
主分类号
H04M1/15
代理机构
代理人
主权项
地址
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