IC 007. US 013 019 021 023 031 034 035. G & S: Machines for the reduction and regulation of pressure, namely, pressure reducers as parts of machines and structural parts thereof, namely, ball valves, sealant ball valves of metal, butterfly valves all being parts of machines; mechanical, hydraulic and pneumatic valve actuators
IC 009. US 021 023 026 036 038. G & S: Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; electric operating actuators, electromechanical actuators
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