Patent classifications
A
HUMAN NECESSITIES
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A62
LIFE-SAVING; FIRE-FIGHTING
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A62C
FIRE-FIGHTING
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13/00
Portable extinguishers which are permanently pressurised or pressurised immediately before use
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A62C13/62
with a single permanently pressurised container
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A62C13/64
the extinguishing material being released by means of a valve
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