U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

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Class 19/269 - Gravity pressure means

Subclass of Class 19 - Textiles: fiber preparation
Definition: Method or means, in which the pressure applying device is
No. of patents: 0