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Process of baking fuel briquettes
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Process for hardening and making smokeless coal briquettes
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Improvements in process of rendering fuel briquettes hard and smokeless
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Oven for baking fuel briquettes
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Oven for carbonizing coal briquettes
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Conveyer bucket
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Process for rendering fuel briquettes hard and smokeless
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Process and furnace for the heat treatment of briquettes
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Improvements in apparatus for treating coal
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Apparatus for the carbonization of coals
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Manufacture of fuel briquettes from waste wood
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Apparatus for carbonization of fuel briquettes
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Process of manufacturing fuel briquettes
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Oven
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Hard and smokeless briquette
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Manufacture of fuel briquettes from waste wood
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Apparatus for the carbonization of coal
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