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Statement - Consolidated Statements of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00400 - Statement - Consolidated Statements of Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - Inventories link:presentationLink link:calculationLink link:definitionLink 10401 - Disclosure - Property and Equipment link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - Lease Commitments link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - Retirement Plans link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - Accumulated Other Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 10801 - 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Disclosure - Summary of Quarterly Financial Data (Unaudited) (Details) link:presentationLink link:calculationLink link:definitionLink