Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
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F23B
METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
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40/00
Combustion apparatus with driven means for feeding fuel into the combustion chamber
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F23B40/06
the fuel being fed along the fuel-supporting surface
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F23B40/08
into pot- or trough-shaped grates
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