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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:21, 9 August 2015 | 1,508 × 1,124 (29 KB) | MichaelFrey | {{Information |Description = {{en|1=Rotary compressor and other engines}} {{:User:MichaelFrey/US2301667}} |Source =https://www.google.co.in/patents/US2301667 |Author =Otto Lutz |Date =28. März 1938 |Permission ={{PD-US... |
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