IT1160629B - Punta da roccia con alesatori a diamante per la trivellazione di pozzi petroliferi e simili
- Google Patents
Punta da roccia con alesatori a diamante per la trivellazione di pozzi petroliferi e simili
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Publication number
IT1160629B
IT1160629BIT69031/78AIT6903178AIT1160629BIT 1160629 BIT1160629 BIT 1160629BIT 69031/78 AIT69031/78 AIT 69031/78AIT 6903178 AIT6903178 AIT 6903178AIT 1160629 BIT1160629 BIT 1160629B
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Priority to IT69031/78ApriorityCriticalpatent/IT1160629B/it
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Publication of IT1160629BpublicationCriticalpatent/IT1160629B/it