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

A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.

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Class 122/309 - Annular firebox

Subclass of Class 122 - Liquid heaters and vaporizers
Definition: Devices in which the central stand pipe extends below the
No. of patents: 0