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发明名称
Resistance material and method of making same
摘要
申请公布号
US2206792(A)
申请公布日期
1940.07.02
申请号
US19370163697
申请日期
1937.09.13
申请人
BERTIL STALHANE
发明人
STALHANE BERTIL
分类号
H01B1/18
主分类号
H01B1/18
代理机构
代理人
主权项
地址
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