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发明名称
Combined volume control and switch unit
摘要
申请公布号
GB438799(A)
申请公布日期
1935.11.25
申请号
GB19340015418
申请日期
1934.05.23
申请人
STACKPOLE CARBON COMPANY;CLARENCE JOHN HATHORN
发明人
分类号
H01C10/32
主分类号
H01C10/32
代理机构
代理人
主权项
地址
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