EXHIBIT 11 PARKER-HANNIFIN CORPORATION FORM 10-Q/A No. 1 COMPUTATION OF EARNINGS PER COMMON SHARE (Dollars in thousands, except per share amounts) (Unaudited) Three Months Ended September 30, 1994 1993 Net income (loss) applicable to common shares $ 43,649 $ 16,065 Weighted average common shares outstanding for the period 48,968,837 48,616,195 Increase in weighted average from dilutive effect of exercise of stock options 336,702 204,623 Weighted average common shares, assuming issuance of the above securities 49,305,539 48,820,818 Earnings per common share: Primary $ .89 $ .33 Fully diluted (A) $ .89 $ .33 (A) This calculation is submitted in accordance with Regulation S-K Item 601(b)(11) although not required for income statement presentation because it results in dilution of less than 3 percent. - 15 -