IT1069233B -
SOIL PERFORATION SYSTEM AND DRILL RELATED TO REVERSE CIRCULATION WITH OPERATING DEVICES IN THE DRILLING HEAD AND POSSIBLY ALONG THE WELL
- Google Patents
SOIL PERFORATION SYSTEM AND DRILL RELATED TO REVERSE CIRCULATION WITH OPERATING DEVICES IN THE DRILLING HEAD AND POSSIBLY ALONG THE WELL
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Publication number
IT1069233B
IT1069233BIT8348276AIT8348276AIT1069233BIT 1069233 BIT1069233 BIT 1069233BIT 8348276 AIT8348276 AIT 8348276AIT 8348276 AIT8348276 AIT 8348276AIT 1069233 BIT1069233 BIT 1069233B
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Application filed by Gaiot AldofiledCriticalGaiot Aldo
Priority to IT8348276ApriorityCriticalpatent/IT1069233B/en
Application grantedgrantedCritical
Publication of IT1069233BpublicationCriticalpatent/IT1069233B/en
IT8348276A1976-11-241976-11-24
SOIL PERFORATION SYSTEM AND DRILL RELATED TO REVERSE CIRCULATION WITH OPERATING DEVICES IN THE DRILLING HEAD AND POSSIBLY ALONG THE WELL
IT1069233B
(en)