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

Voldi E. Maki, Jr.

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Acoustic measuring method for borehole formation testing

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent

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Acoustic well cleaner

Wells – Sonic device – With specific downhole feature
Patent

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Apparatus and method for determining the dynamic mechanical...

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate

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Apparatus and method for estimating the compressive strength...

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate

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Apparatus and method for evaluating the effectiveness of materia

Measuring and testing – Liquid level or depth gauge – Immersible electrode type
Patent

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Profile ID: LFUS-PAI-P-257866

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