4. Excavating
  5. Snow or ice removing or grooming by portable device
  6. Railway clearer

Donald B. Mann

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High-lead yarder rake

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Pivotally mounted ripping teeth assembly on dozer blade

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Swing-away bulldozer teeth assembly

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Profile ID: LFUS-PAI-P-2534

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