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Tom Mueller
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119307 |
| |
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Soviet inventions - Изобретения СССР
|
119310 |
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Aircraft engine
|
119346 |
| |
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Australian inventions
|
119349 |
| |
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Arsenal Plant (Saint Petersburg) products
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119368 |
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scramjet (supersonic combustion ramjet)
|
119350 |
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Expressionist architecture
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119412 |
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Astronomical observatories in Germany
|
119411 |
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Solar telescopes
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119414 |
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B Tower - B-Turm, Beobachtungsturm)
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119431 |