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(1) Depreciation expense was $285 in 2020, $389 in 2019 and $360 in 2018. Depreciation expense of continuing operations was $285 in 2020, $315 in 2019 and $259 in 2018. Buildings are depreciated over periods ranging from 7 to 45 years. Machinery and equipment are depreciated over periods generally ranging from 2 to 20 years. 

## Statements of Earnings 

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