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Contingencies (Tables)
12 Months Ended
Dec. 31, 2011
Contingencies  
Asbestos filings and the claims pending at the end of each listed year

 

 

 
  2011   2010   2009  

Pending at beginning of year

    5,900     6,900     11,500  

Disposed

    4,500     4,200     10,700  

Filed

    3,200     3,200     6,100  
               

Pending at end of year

    4,600     5,900     6,900