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发明名称
Resistor material and method of making the same
摘要
申请公布号
US1872581(A)
申请公布日期
1932.08.16
申请号
US19300436542
申请日期
1930.03.17
申请人
CONTINENTAL DIAMOND FIBRE COMPANY
发明人
HAROLDSON ARTHUR H.
分类号
H01C7/00
主分类号
H01C7/00
代理机构
代理人
主权项
地址
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