US PATENT SUBCLASS 252 / 7
.~.~ Carbonates or ammonium salts containing or pyrolytic

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

2  DF  FIRE-EXTINGUISHING {4}
4  DF  .~ Gas generative, chemically {3}
7.~.~ Carbonates or ammonium salts containing or pyrolytic

DEFINITION

Classification: 252/7

(under subclass 4) Compositions which contain carbonates, ammonium compounds, or other substances which are adapted to generate gas by heat-decomposition thereof, substances

peculiar thereto or processes which include such heat-decomposition.