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US Patents

Conveyor apparatus for the transport of sheet metal blanks

Conveyors: power-driven – Conveyor for changing attitude of item relative to conveyed... – For inverting successive items

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

I am not sure

Manufacturing base and used to stop/slow down rivals

Serves only patent trolls

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