US PATENT SUBCLASS 570 / 160
.~.~.~.~ Substituting fluorine for a different halogen


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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
123  DF  .~.~ Fluorine containing {21}
153  DF  .~.~.~ Preparing unsaturated compound {4}
160.~.~.~.~ Substituting fluorine for a different halogen


DEFINITION

Classification: 570/160

Substituting fluorine for a different halogen:

(under subclass 153) Process wherein an atom of fluorine replaces a different halogen in the compound.