Angle gauges; calculating machines; calculating scales; calculators; calculators and calculating machines; laser measuring systems; level gauges; level indicators; measuring apparatus, namely, laser distance meters; moisture measuring devices for measuring moisture in construction materials, in the nature of wood, soil, walls, lumber, brick, concrete drywall, plaster, carpet; measuring apparatus, namely, roller distance meters and distance devices for measuring information on plans, charts and maps; carpenter's levels; cases for pocket calculators; computer application software for mobile phones, computer application software for desktop and laptop computers, downloadable mobile applications, and downloadable software, namely, software for performing industry specific calculations in the industries of construction, carpentry, electrical power and wiring, machining, metal fabrication, plumbing, concrete, real estate, and home improvement projects; electronic calculators; electronic desk calculators; instruments for measuring length; laboratory equipment and supplies, namely, calipers; length measuring gauges; pocket calculators; pocket calipers for measuring; pocket-sized electronic calculators; slide calipers