Oil well drilling and completion equipment, namely, remotely operable wellhead-connection systems comprised primarily of a metal pipe machine coupling with a remotely operable metal clamp used to attach and detach well service tools to a wellhead for use with a remote-control apparatus for locking and releasing the remotely operable metal clamp

'apparatus':46 'attach':30 'clamp':27,55 'complet':5 'compris':14 'connect':12 'control':45 'coupl':21 'detach':32 'drill':3 'equip':6 'lock':48 'machin':20 'metal':18,26,54 'name':7 'oil':1 'oper':9,25,53 'pipe':19 'primarili':15 'releas':50 'remot':8,24,44,52 'remote-control':43 'servic':34 'system':13 'tool':35 'use':28,40 'well':2,33 'wellhead':11,38 'wellhead-connect':10

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