7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
engines, other than for land vehicles; retrofit and conversion kits for engines other than for land vehicles, consisting of gas shut off valves being parts of engines other than for land vehicles and also containing gas pressure regulators, gas flow control valves, gas heaters, gas lines, mixers, air system connectors comprised of flanges, bolts, mixing tubes, flame arrestors, air filters, mounting brackets, computer software for engine control, engine control modules, engine sensors for sensing gas exhaust temperatures, pressure, oxygen, and voltage, electrical switches, operator interfaces for computers, computer monitors and display screens, gauges for energy substitutions, gas rail pressure, exhaust port temperature, rpm, engine power and error messages, transformers, voltage regulators, and wiring harnesses; retrofit and conversion kits for engines for land vehicles consisting of gas shut off valves being parts of engines for land vehicles and also containing gas pressure regulators, gas flow control valves, gas heaters, gas lines, mixers, air system connectors comprised of flanges, bolts, mixing tubes, flame arrestors, air filters, mounting brackets, computer software for engine control, engine control modules, engine sensors for sensing gas exhaust temperatures, pressure, oxygen, and voltage, electrical switches, operator interfaces for computers, computer monitors and displays screens, gauges for energy substitutions, gas rail pressure, exhaust port temperature, rpm, engine power and error messages, transformers, voltage regulators, and wiring harnesses