4. Communications: electrical
  5. Selective
  6. Interrogation response

Preston E. Chaney

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Ice anchor

Ships – Building – Canal and ferry boats
Patent

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Inclinometer

Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent

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Method and apparatus for breaking ice with water

Ships – Ice breakers
Patent

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Telemetry system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent

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Wellbore instrument hanger

Communications: electrical – Selective – Interrogation response
Patent

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Profile ID: LFUS-PAI-P-913188

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