%%
%% Der LaTeX-Begleiter, zweite Auflage (September 2005)
%%
%% Beispiel 5-1-4 von Seite 250.
%%
%% Copyright (C) 2005 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% Uebersetzung: Copyright (C) 2005 Claudia Krysztofiak,
%%    Rebecca Stiels und Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{lb2exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{173.4372pt}
\StartShownPreambleCommands
\newcommand\lenrule[1]{\makebox[#1]{%
  \rule{.4pt}{4pt}\hrulefill\rule{.4pt}{4pt}}}
\StopShownPreambleCommands
\begin{document}
\begin{tabbing}
dd\quad \= \hspace{.55\linewidth} \= \kill
pc \> Pica = 12pt       \> \lenrule{1pc} \\
cc \> Cicero  = 12dd    \> \lenrule{1cc} \\
cm \> Zentimeter = 10mm \> \lenrule{1cm} \\
\end{tabbing}
\end{document}