Automatic valves for use in oil, gas and production wells, namely, safety valves, electronically controlled valves, hydraulically-controlled valves, electro-hydraulically controlled valves and remotely actuated valves, namely, flow control valves and controlled fluid and gas flow valves, all of the foregoing being parts for tools and equipment for oil and gas well completion

'actuat':28 'automat':1 'complet':56 'control':15,19,24,32,35 'electro':22 'electro-hydraul':21 'electron':14 'equip':50 'flow':31,39 'fluid':36 'forego':44 'gas':7,38,54 'hydraul':18,23 'hydraulically-control':17 'name':11,30 'oil':6,52 'part':46 'product':9 'remot':27 'safeti':12 'tool':48 'use':4 'valv':2,13,16,20,25,29,33,40 'well':10,55

Valves being parts of safety valves used in oil, gas and production wells

'gas':10 'oil':9 'part':3 'product':12 'safeti':5 'use':7 'valv':1,6 'well':13

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