HOUSTON--(BUSINESS WIRE)--Changing Technologies, Inc. (OTCBB: CHGT) has secured a 3D printing project with a top Houston-area hospital – an important opportunity the company can use to gain future business with the provider and expand into other areas, too. CHGT will provide printing services related to the promotion of the hospital’s new mobile doctor device, which enables a doctor at one facility to virtually “see and diagnose” patients at another remote location. The design chosen poses uniq


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