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

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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."

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Class 171/92 - Separator or collector within annular or endless digger


Subclass of Class 171 - Unearthing plants or buried objects
Definition: Apparatus which includes a digger having digging elements
No. of patents: 1
Last issue date: 09/18/1979


NumberTitleIssue Date
4167975Beach cleaning apparatus
An apparatus for cleaning beaches including a conveyor that will pick up foreign objects from a beach, elevate such objects together with accumulated sand, a tumbler which receives the material and rotates to separate the material from sand, a brush to un... 		09/18/1979
 
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