\documentclass[12pt,czech]{article}
\usepackage{times}
\usepackage[T1]{fontenc}
\usepackage[latin2]{inputenc}
\usepackage{geometry}
\geometry{verbose,a4paper,tmargin=2cm,bmargin=2cm,lmargin=2cm,rmargin=2cm}
\usepackage{array}

\makeatletter

\providecommand{\tabularnewline}{\\}

% Different font in captions
\newcommand{\captionfonts}{\small\sf}

\makeatletter  % Allow the use of @ in command names
\long\def\@makecaption#1#2{%
  \vskip\abovecaptionskip
  \sbox\@tempboxa{{\captionfonts #1: #2}}%
  \ifdim \wd\@tempboxa >\hsize
    {\captionfonts #1: #2\par}
  \else
    \hbox to\hsize{\hfil\box\@tempboxa\hfil}%
  \fi
  \vskip\belowcaptionskip}
\makeatother   % Cancel the effect of \makeatletter
\setlength{\abovecaptionskip}{0pt}
\setlength{\belowcaptionskip}{0pt} 
\usepackage[square,comma,numbers,sort&compress]{natbib}

\usepackage{babel}
\makeatother
\begin{document}
\noindent \begin{tabular}{|>{\raggedright}b{4cm}|>{\raggedright}b{13cm}|}
\hline 
\textbf{Název a \v{c}íslo úlohy}&
\tabularnewline
\hline 
\textbf{Datum m\v{e}\v{r}ení}&
\tabularnewline
\hline 
\textbf{M\v{e}\v{r}ení provedli}&
\tabularnewline
\hline 
\textbf{Vypracoval}&
\tabularnewline
\hline 
\textbf{Datum}&
\tabularnewline
\hline 
\textbf{Hodnocení}&
\tabularnewline
\hline
\end{tabular}
\end{document}
