4. Measuring and testing
  5. Borehole or drilling
  6. Downhole test

Christian Amstad

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Method and apparatus for determining shifts at terrain and in st

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Earth stresses
Patent

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Method of, and tubing and support apparatus for, arranging a tub

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Profile ID: LFUS-PAI-P-1014994

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