4. E - Fixed Constructions
  5. 21
  6. D

Thomas L. Arrington

E - Fixed Constructions – 21 – D

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Continuous roof support system for tunnel boring

E - Fixed Constructions – 21 – D
Patent

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Earth boring machine with tandem thrust cylinders

E - Fixed Constructions – 21 – B
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Earthen dam repair

E - Fixed Constructions – 02 – D
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Gripper for a drill rod handling apparatus

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-372314

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