4. Electricity: measuring and testing
  5. Magnetic
  6. Displacement

David M. Ostfeld

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Buoyant substructure for offshore platform

Ships – Floating platform
Reexamination Certificate

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Compressor incipient surge detection system

Pumps – Processes
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Electromagnetic method of and apparatus for electromagnetic...

Measuring and testing – Liquid level or depth gauge
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Electromagnetic method of liquid level monitoring

Measuring and testing – Liquid level or depth gauge
Reexamination Certificate

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Electromagnetic method of liquid level monitoring

Measuring and testing – Testing of material
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Profile ID: LFUS-PAI-P-2035451

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