4. Transportation
  5. Special purpose vehicle
  6. Service vehicle

Lloyd Walker

Inventor

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Swivelling device for a downhole rod pump

Wells – Above ground apparatus – Suspension means
Reexamination Certificate

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Utility vehicle

Transportation – Special purpose vehicle – Service vehicle
Patent

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Water craft

Transportation – Watercraft or hull – Raft – float – or platform
Patent

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Profile ID: LFUS-PAI-P-672760

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