发明名称 |
APERFEICOAMENTO EM CAPACITOR VARIAVEL |
摘要 |
A variable capacitor comprising a lower plate and an upper plate which are made of a synthetic material which is suitable for ultrasonic welding, said plates being provided with a number of engaging spacer columns which are integral with the plates and which are connected to each other by ultrasonic welding. |
申请公布号 |
BR7801355(A) |
申请公布日期 |
1978.10.31 |
申请号 |
BR19787801355 |
申请日期 |
1978.03.06 |
申请人 |
PHILIPS NV |
发明人 |
SMIT J;WAGEMAKERS A;ROOZEN J |
分类号 |
H01G5/04;H01G5/01;H01G5/013;(IPC1-7):H01G5/01 |
主分类号 |
H01G5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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