Exhibit 4.13 Form of Common Stock Purchase Warrant held by John A. Harpole THIS WARRANT AND THE SHARES ISSUABLE UPON THE EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE...Warrant Agreement • April 28th, 2000 • Metretek Technologies Inc • Services-business services, nec • Delaware
