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经营范围
发明名称
Improvements in or relating to Polarised Magnetic Ringers
摘要
申请公布号
GB1164152(A)
申请公布日期
1969.09.17
申请号
GB19690015205
申请日期
1966.01.07
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
LESLIE EUGENE BASIL DYMOKE BRADSHAW;NIRMAL SINGH LOTAY
分类号
G10K1/067;H04M
主分类号
G10K1/067
代理机构
代理人
主权项
地址
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