Bidmaster The Bid Master system guides you through the selection of a window or door and removes all the guesswork. It prompts you for every option available and will not allow invalid choices. It couldn't be easier to order windows doors accessories and stair parts you need. URL: http://www.bidmaster.com
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Vertigraph, Inc. Vertigraph, Inc., an international supplier of windows based software, develops and markets software solutions that automate the takeoff, estimating, bidding and digitizing functions of companies engaged in construction management. URL: http://vertigraph.com/
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