Batteries, electric; Blank USB flash drives; Cases especially made for photographic apparatus and instruments; Downloadable photographs and diagrams of properties and buildings; Downloadable software application for downloading DVR-recorded content for viewing on smartphones; Heliographic apparatus; Loudspeakers; Photographic cameras; Photographic transparencies; Rechargeable electric batteries; Shutter releases; Solar panels for the production of electricity; Stands for photographic apparatu...