4. Tools
  5. Wrench, screwdriver, or driver therefor
  6. Machine

Stephen R. Callegari, Sr.

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Gravel pack assembly

Wells – Means for forming filter beds
Patent

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Pipe measurement, labeling and controls

Boots – shoes – and leggings
Patent

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Pipe spinner

Tools – Wrench – screwdriver – or driver therefor – Machine
Patent

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Slurry separator

Imperforate bowl: centrifugal separators – Rotatable bowl – Including discharge-related structure in nature of static...
Patent

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Profile ID: LFUS-PAI-P-77023

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