4. Radiant energy
  5. Geological testing or irradiation
  6. With drill or drilling

John Grunbeck

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Apparatus for nuclear logging employing sub wall mounted detecto

Radiant energy – Geological testing or irradiation – With drill or drilling
Patent

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Apparatus for nuclear logging employing sub wall mounted detecto

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent

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Modular connector for measurement-while-drilling tool

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Ray energy detection or measuring
Patent

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Optical connector assembly

Optical waveguides – With disengagable mechanical connector – Structure surrounding optical fiber-to-fiber connection
Reexamination Certificate

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Optical connector assembly

Optical waveguides – With optical coupler – With alignment device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-979460

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