Xiaoying (Snow) Zhang » Member Directory Go back to directory. Xiaoying (Snow) Zhang Bossa Nova RoboticsPatent, Trademark, Copyright, Trade Secret 10 Earlswood Ave. Pittsburgh PA 15228 postal Phone: 412-519-5417 Email: xiaoying_zhang@yahoo.com No Logo Available Connections Business Directory | Leaflet | © OpenStreetMap contributors 10 Earlswood Ave. Pittsburgh PA 15228Get Directions