4. B - Operations, Transporting
  5. 23
  6. B

Philip Chang

B - Operations – Transporting – 23 – B

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Inventor

Country: Canada

Ratchet-driven auger or drill

B - Operations – Transporting – 23 – B
Patent

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Stimulated emission luminescent light-guide solar concentrators

H - Electricity – 01 – L
Patent

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Ratchet-driven auger or drill

B - Operations – Transporting – 23 – B
Patent

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Profile ID: LFCA-PAI-P-1996498

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