Impossible, such as glasses that can see ghosts.
Pure handicraft skills (no industrial applicability)
Non-reproducibility, such as accidentally fired ceramic articles.
Violate the laws of nature, such as perpetual motion machine.
Products with unique natural conditions
Surgical procedures for non-therapeutic purposes in humans or animals.
There is no positive effect, such as washing minerals in natural rivers.
A method for measuring human biological parameters under extreme conditions,
Paper-cutting is a craft, and it cannot be authorized unless the method of creating paper-cutting can be applied.
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