A portable small-sized camera has a case having a ball-point pen appearance in a portion thereof and a through hole in one side, and a camera circuit part built in the case and for photographing an object through the through hole. The portable small-sized camera has the ball-point pen appearance, photographing...http://www.google.com/patents/US6667771?utm_source=gb-gplus-sharePatent US6667771 - Wireless image transmission system having a portable camera
