POWER OF ATTORNEY



Know all by these presents, that the undersigned hereby constitutes and appoints each of

Joseph W. Schmidt, Ivonne M. Cabrera and Ambika Sharma, severally, as the undersigned's true and lawful

attorneys-in-fact and agents, with full power of substitution or revocation, for the undersigned and in

the undersigned'sname, place and stead,to:



(1) execute for and on behalf of the undersigned, and to submit to the Securities and Exchange Commission

(the "Commission"),in the undersigned's capacity as an officer and/or director of Dover Corporation

(the "Company"), a Form ID to obtain EDGAR codes for the undersigned to submit filings to the

Commission via the Commission's Electronic Data Gathering and Retrieval Systems:



(2) execute for and on behalf of the undersigned, in the undersigned's capacity as an director

and/or officer of the Company,Forms 3, 4, and 5 in accordance with Section 16(a)of the

Securities Exchange Act of 1934, as amended, and the rules promulgated thereunder

(the "Exchange Act");



(3) do and perform any and all acts for and on behalf of the undersigned which may be necessary or

desirable to complete and execute any such Form 3, 4, or 5, or any amendment or amendments thereto, and

file any such Form with the Commission and any stock exchange or similar authority; and



(4) take any other action of any type whatsoever in connection with the foregoing which, in the

opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required

by, the undersigned, it being understood that the documents executed by such attorney-in-fact on

behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain

such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.



The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform

each and every act and thing requisite, necessary, or proper to be done in the exercise of

any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned

might or could do in person, hereby ratifying and confirming all that such attorney-in-fact, or such

attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this

Power of Attorney and the rights and powers herein granted.



The undersigned acknowledges that the foregoing attorneys-in-fact,

in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company

assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities

Exchange Act.



This Power of Attorney shall remain in full force and effect until the undersigned is no longer

required to file Forms 3, 4, and 5 under Section 16 of the Exchange with respect to the undersigned's holdings of

and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing

delivered to the foregoing attorneys-in-fact.



IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of

this 2nd day of August, 2007.





Signature:/s/Thomas J. DeRosa



Print Name: Thomas J. DeRosa