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经营范围
发明名称
Improvements in or relating to variable electrical resistors
摘要
申请公布号
GB978777(A)
申请公布日期
1964.12.23
申请号
GB19620001097
申请日期
1962.01.11
申请人
STEATIT-MAGNESIA AKTIENGESELLSCHAFT
发明人
分类号
H01C1/14;H01C10/00;H01C10/32
主分类号
H01C1/14
代理机构
代理人
主权项
地址
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