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发明名称
Insulating coating for filaments and method of applying the same
摘要
申请公布号
US1874542(A)
申请公布日期
1932.08.30
申请号
US19290394923
申请日期
1929.09.24
申请人
ARCTURUS RADIO TUBE COMPANY
发明人
KAUL JOHN
分类号
H01B3/10;H01J1/22
主分类号
H01B3/10
代理机构
代理人
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地址
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