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经营范围
发明名称
Improvements in or relating to variable resistance devices
摘要
申请公布号
GB636369(A)
申请公布日期
1950.04.26
申请号
GB19470028514
申请日期
1947.10.24
申请人
THE MORGAN CRUCIBLE COMPANY LIMITED;COLIN CLARENCE GOW;JOHN BOOKER HARRISON
发明人
分类号
H01C10/36
主分类号
H01C10/36
代理机构
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