4. Earth working
  5. Tool, standard or connection
  6. Frame-supported blade, scraper, or smoother drawn by vehicle

Robert S. Kerpash, Sr.

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Grain storage safety net system and method

Static structures (e.g. – buildings) – Fluent material hopper or storage container with material port
Reexamination Certificate

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Tractor drawn scraper with folding wings

Earth working – Tool – standard or connection – Frame-supported blade – scraper – or smoother drawn by vehicle
Patent

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Profile ID: LFUS-PAI-P-1417827

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