4. Fluid handling
  5. With indicator, register, recorder, alarm or inspection means
  6. Fluid pressure responsive indicator, recorder or alarm

Donald F. Huffhines

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Compressed air distribution system

Fluid handling – With indicator – register – recorder – alarm or inspection means – Fluid pressure responsive indicator – recorder or alarm
Patent

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Continuous plotter

Recorders – Writers – Receiver and marker movable
Patent

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Floatation apparatus for marine seismic exploration

Ships – Towing or pushing – Submerged object
Patent

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Protection means for depth control device

Ships – Towing or pushing – Submerged object
Patent

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System for deploying and retrieving seismic source assembly from

Ships – Towing or pushing – Submerged object
Patent

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Profile ID: LFUS-PAI-P-229965

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