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US Patents

Apparatus for the continuous manufacture of polymer plates

Plastic article or earthenware shaping or treating: apparatus – With interposed non-adhering web or sheet type parting means

Patent

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Already used for thousands of years

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It might

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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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