Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
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F23H
GRATES; CLEANING OR RAKING GRATES
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7/00
Inclined; or stepped; grates
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F23H7/06
with movable bars disposed parallel to direction of fuel feeding
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F23H7/08
reciprocating along their axes
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