Questions on 'inventions' tag

  1. 1101
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  2. 1066
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  3. 1120
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  4. 1099
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  5. 1420
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    1

  6. 634
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  7. 1069
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  8. 612
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  9. 1161
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    1

  10. 1409
    7
    1

  11. 1317
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    1