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US Patents

Weir for setting the liquid level in solid bowl centrifuges

Imperforate bowl: centrifugal separators – Rotatable bowl – Including discharge-related structure in nature of static...

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

What is the true purpose of this patent? - Does this patent serve only to stop other inventors persuing an idea, or it is patented to solve a specific problem?

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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