File:Roths Patent D157432.JPG
Roths_Patent_D157432.JPG (673 × 425 pixels, file size: 30 KB, MIME type: image/jpeg)
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Roths Patent No. D157432 on December 19, 1946 |
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current | 18:42, 19 January 2009 | 673 × 425 (30 KB) | Schn23 (talk | contribs) | {{Information |Description= Roths Patent No. D157432 on December 19, 1946 |Source= http://www.google.com/patents?id=cxRvAAAAEBAJ |Date= |Author= |Permission= |other_versions= }} |
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