Telemeters; Directional compasses; Distance measuring apparatus; Global positioning system (GPS) apparatus; Infrared detectors; Life belts; Measuring apparatus, namely, laser distance meters; Optical inspection apparatus; Optical lenses; Plumb bobs; Precision instruments for manipulation and positioning of microscopic objects; Prisms for optics purposes; Prisms for scientific purposes; Safety goggles; Surveying instruments; Surveying machines and instruments; Surveyors' levels; Tool measuring...