4. Boring or penetrating the earth
  5. Boring with explosion in inaccessible hole
  6. With wall engaging packer or anchor

Kenneth J. Hartwein

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Through the tubing perforating gun assembly

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor
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Unidirectional filter for hydraulic systems

Wells – Processes – With indicating – testing – measuring or locating
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Profile ID: LFUS-PAI-P-731578

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