Theodolites; Bubble levels; Carpenter's levels; Distance measuring apparatus; Laser level measuring apparatus; Laser measuring systems; Level measuring machines; Levelling rods; Measuring apparatus, namely, angle finders; Measuring apparatus, namely, bevels; Measuring apparatus, namely, clamp meters for measuring electricity; Measuring apparatus, namely, laser distance meters; Measuring apparatus, namely, rain gauges; Optical lenses; Plumb bobs; Precision theodolites; Surveying instruments; T...