Quad frames

http://find.botmag.com/512071


 * http://www.innov8tivedesigns.com/
 * http://www.dronesvision.com/
 * http://www.aeryon.com/
 * http://www.google.com/patents?id=HmjXAAAAEBAJ&pg=PA1&dq=Aeryon&hl=en&sa=X&ei=8ouqT6_MIeL80QWm6s3-Aw&ved=0CDsQ6AEwAQ#v=onepage&q=Aeryon&f=false


 * http://diydrones.com/profiles/blogs/shielded-hexacopter-is-safer-than-the-rest shielded frame to use in urban environment to reduce risk of injury to public

http://www.hoverthings.com/

RadioModems

http://www.rctoys.com/rc-toys-and-parts/DF-COMPLETE-AIRFRAME/RC-PARTS-DRAGANFLYER-FRAME.html

http://www.rctoys.com/rc-toys-and-parts/DF-FrameBracing/RC-PARTS-DRAGANFLYER-FRAME.html

http://www.google.com/url?sa=D&q=http://www3.towerhobbies.com/cgi-bin/wti0001p%3F%26I%3DLXKBF3%26P%3D7&usg=AFQjCNFrkYltvYB4-n6vrw93tA3-YKjpyQ

http://www.armokopter.at/forum/viewtopic.php?f=3&t=477