US PATENT SUBCLASS 169 / 43
PROCESSES

Current as of: June, 1999
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169 /   HD   FIRE EXTINGUISHERS

43PROCESSES {3}
44  DF  .~> With mixing of extinguishing compounds
45  DF  .~> Of preventing fire
46  DF  .~> Of extinguishing fire {1}

DEFINITION

Classification: 169/43

(under the class definition) Methods practiced to prevent or extinguish fires.