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Interim Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Net sales |  |  |  |
Products | $ 450,414 | $ 450,079 | $ 852,767 | $ 870,070
Service | 128,266 | 120,204 | 250,266 | 235,613
Total net sales | 578,680 | 570,283 | 1,103,033 | 1,105,683
Cost of sales |  |  |  |
Products | 193,339 | 198,612 | 365,498 | 386,457
Service | 76,498 | 72,663 | 149,439 | 143,116
Gross profit | 308,843 | 299,008 | 588,096 | 576,110
Research and development | 29,003 | 27,966 | 56,703 | 56,633
Selling, general and administrative | 173,434 | 169,985 | 339,554 | 337,626
Amortization | 5,807 | 5,357 | 10,929 | 10,556
Interest expense | 5,543 | 5,706 | 10,943 | 11,529
Restructuring Charges | 3,196 | 7,835 | 8,198 | 8,143
Other charges (income), net | 987 | 433 | 1,760 | 589
Earnings before taxes | 90,873 | 81,726 | 160,009 | 151,034
Provision for taxes | 21,811 | 20,022 | 38,403 | 37,003
Net earnings | 69,062 | 61,704 | 121,606 | 114,031
Basic earnings per common share: |  |  |  |
Net earnings | $ 2.29 | $ 1.97 | $ 4.03 | $ 3.63
Weighted average number of common shares | 30,119,889 | 31,267,660 | 30,209,729 | 31,399,788
Diluted earnings per common share: |  |  |  |
Net earnings | $ 2.24 | $ 1.93 | $ 3.93 | $ 3.54
Weighted average number of common and common equivalent shares | 30,849,934 | 32,038,928 | 30,975,957 | 32,212,927
Comprehensive Income, Net of Tax | $ 74,897 | $ 36,969 | $ 110,326 | $ 110,087

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