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

John L. Evans

Inventor

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Automotive electronics test system

Boots – shoes – and leggings
Patent

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Cannon launched platform

Aeronautics and astronautics – Missile stabilization or trajectory control – Automatic guidance
Patent

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Liquid-projecting monitor

Fire extinguishers – Mount – cabinet or guard – Movable relative to fire
Patent

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Liquid-projecting monitor

Fluid sprinkling – spraying – and diffusing – Flow deflecting or rotation controlling means
Patent

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Magnetic single shot inclinometer

Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Patent

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Profile ID: LFUS-PAI-P-172513

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