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经营范围
发明名称
A device for disinfecting the mouthpieces of telephones
摘要
申请公布号
GB498616(A)
申请公布日期
1939.01.11
申请号
GB19370026777
申请日期
1937.10.04
申请人
HERBERT LEONARD KENT;JACOB ZWEIGENBAUM
发明人
分类号
H04R1/12
主分类号
H04R1/12
代理机构
代理人
主权项
地址
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