7
Vacuum pumps, compressors and vacuum systems composed thereof; compressors for machines, and vacuum systems comprised of liquid ring pumps, claw pumps, rotary vane pumps, screw pumps, scroll pumps, and roots pumps; monitor and control devices, namely, pump control valves as part of a vacuum system for controlling vacuum pumps
37
Installation, repair and maintenance of vacuum pumps, compressors for machines, and vacuum systems comprised of liquid ring pumps, claw pumps, rotary vane pumps, screw pumps, scroll pumps, roots pumps, and monitor and control devices, namely, pump control valves as part of a vacuum system for controlling vacuum pumps; Installation, repair, and maintenance of compressors for machines, except compressors for air-conditioning apparatus for motor vehicles
42
Engineering work and services, namely, engineering for vacuum pump and compressor applications for chemical, pharmaceutical, medical, packaging, pneumatic transport, paper, semiconductor, plastic, textile, solar, environmental, transport and handling, food and beverage, metallurgy, and wood industries; design of vacuum pumps, compressors for machines, vacuum systems comprised of liquid ring pumps, claw pumps, rotary vane pumps, screw pumps, scroll pumps, roots pumps, and monitor and control devices, namely, pump control valves as part of a vacuum system for controlling vacuum pumps, design of compressors, except compressors for air-conditioning apparatus for motor vehicles
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