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| 110 | 2 | 0 | _aGreat Britain Patent Office |
| 245 | 1 | 0 | _aDischarging & charging machine for gas retorts |
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_bHMSO _c1909 |
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| 500 | 0 | 0 | _aNo 20653 |
| 700 | 1 | 0 | _aWest, John |
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