Downloadable computer operating programs; Recorded computer operating system software; Downloadable computer application software for earth moving machines, namely, software for use in surveying and mapping in agricultural, construction and fleet management industries; Downloadable computer software platforms for use in surveying and mapping in agricultural, construction and fleet management industries; Tablet computers; Aerials; Satellite navigational system, namely, a global positioning system (GPS); Global positioning system (GPS) apparatus; Receiving antennas for satellite broadcast; Electric navigational instruments; Global positioning system being GPS receivers; Single-channel radio communication apparatus for fixed stations; radio transmitters and receivers; Surveying instruments; Electric or electronic sensors for determining the variation of horizontal angle; Recorded computer software platforms for use in surveying and mapping in agricultural, construction and fleet management industries; fleet management devices, namely, GPS receivers, display monitors and software for use in earthmoving, grading, and highway construction grade control systems comprising GPS receivers, display monitors and software for use in earthmoving, grading and highway construction; GPS receivers, hardware and computer software and firmware for the transmission of data and the correction of data and the navigation of bulldozers, motor graders, excavators, scrapers, compactors, paving machines and curb and gutter machines for use in the agricultural, construction and fleet management industries