Manually operated metal valves for oil, gas, and geothermal pipelines; metal valves not being parts of machines, namely, ball valves, expanding gate valves, slab gate valves, wellhead valves, x-mas tree valves, and their parts

'ball':19 'expand':21 'gas':7 'gate':22,25 'geotherm':9 'machin':17 'manual':1 'mas':31 'metal':3,11 'name':18 'oil':6 'oper':2 'part':15,36 'pipelin':10 'slab':24 'tree':32 'valv':4,12,20,23,26,28,33 'wellhead':27 'x':30 'x-mas':29

Minehead apparatus for excavators, namely, electric valve actuators

'actuat':8 'apparatus':2 'electr':6 'excav':4 'minehead':1 'name':5 'valv':7

Minehead apparatus for excavators, namely, mining bits; valve operation machines, namely, hydraulic valve actuators and air-pressure valve actuators in the nature of pneumatic valve actuators

'actuat':14,20,27 'air':17 'air-pressur':16 'apparatus':2 'bit':7 'excav':4 'hydraul':12 'machin':10 'mine':6 'minehead':1 'name':5,11 'natur':23 'oper':9 'pneumat':25 'pressur':18 'valv':8,13,19,26

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