![File:Pollak bridge.png](http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Pollak_bridge.png/800px-Pollak_bridge.png)
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current | 16:59, 30 March 2012 | ![]() | 1,424 × 771 (94 KB) | Kekator | Larger & cleaned |
07:45, 6 November 2011 | ![]() | 530 × 257 (50 KB) | RJB1 | {{Information |Description ={{en|1=Bridge rectifier from Karol Pollak patent.}} {{pl|1=Prostownik mostkowy w patencie Karola Pollaka}} |Source =British patent 24398 from 1895 |Author =Karol Pollak |Date =1895 |Permission = |
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