Lockheed's MEADS Wins \$3 Bln Contract  WASHINGTON (Reuters) - A transatlantic venture led by  Lockheed Martin Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=LMT.N target=/stocks/quickinfo/fullquote"&gt;LMT.N&lt;/A&gt; on Tuesday won a \$3 billion  contract to design and develop the Medium Extended Air Defense  System (MEADS), which is slated to replace Patriot missiles in  the next decade, the venture said on Tuesday.