Hand operated tile installation apparatus comprising a spacer and a cap coupled with the spacer

Flooring underlayment, namely, a hydraulic material that when mixed with water provides a smooth and solid surface that when dry is able to accept many types of flooring products

Measuring apparatus and instruments, namely, apparatus for measuring the flatness and levelness of floors; information technology equipment, namely, inclinometer, microcontroller, microprocessor; central processing units for processing information, data, sound or images; computer hardware and recorded and downloadable software for analyzing the elevational data of the floor and the compliance of the international standards regarding the quality of the floor, including its flatness and levelness

non-contacting level measurement instrumentation; namely, nuclear, microwave radar, ultrasonic, and neutron level measurement instruments

optical level switches