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US Patents

Stone gatherer with discharge conveyor

Unearthing plants or buried objects – Stone gathering and/or unearthing by impelling above-ground... – Impeller inclined to line of draft

Patent

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Already used for thousands of years

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Bloory idea and bloory practical use

Very broad patent, without practical use

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Patented to preserve knowledge

Defensive patent

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Manufacturing base and used to stop/slow down rivals

Serves only patent trolls

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