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发明名称
Improvements relating to the making of electrical contact in variable resistances or like apparatus
摘要
申请公布号
GB428579(A)
申请公布日期
1935.05.15
申请号
GB19340027419
申请日期
1934.09.24
申请人
STEATIT-MAGNESIA AKTIENGESELLSCHAFT
发明人
分类号
H01C1/125
主分类号
H01C1/125
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