US PATENT SUBCLASS 204 / 177
.~.~ Nitrogen compounds

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
164  DF  .~ Electrostatic field or electrical discharge {6}
177.~.~ Nitrogen compounds {1}
178  DF  .~.~.~> Arc or spark discharge {1}

DEFINITION

Classification: 204/177

(under subclass 164) Processes directed to the production of inorganic nitrogen compounds.