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 213/138 - Rotating and sliding

Subclass of Class 213 - Railway draft appliances
Definition: Wherein devices of the class indicated the means rotates
No. of patents: 0