Class 217/71 - Wire

Subclass of Class 217 - Wooden receptacles
Definition: Driven stays and fastenings made of wire.
No. of patents: 2
Last issue date: 03/17/1987

Number	Title	Issue Date
4650084	Collapsible box A collapsible box having sidewalls secured together at the corners of the box by first and second loop elements fastened to two adjacent sidewalls. As disclosed, each loop element includes two tapered end portions adjacent one another driven into a sidewa...	03/17/1987
3992159	Process for purification by cryogenic sublimation A process is described for purifying liquids by cryogenic sublimation. This process involves solidifying the liquid by reducing the temperature and pressure to below the triple point. Purification is then carried out by direct transformation from the soli...	11/16/1976

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