\documentclass{article}

\newfont{\ajo}{ajo}
\newcommand{\lll}{\mbox{\ajo <}}

\begin{document}
  Here is some differently fonted text:
  {\ajo INOOIIONNI CNOIOCC ONNC INOOIIONNI INCCIMI CNNI}. All done.

  And $1\lll 2$ in math mode.
\end{document}
