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Class Information
Number: 434/217
Name: Education and demonstration > Meteorology
Description: Subject matter relating to atmospheric conditions, weather, or weather forecasting.

Patents under this class:

Patent Number Title Of Patent Date Issued
6520861 Entertainment apparatus, storage medium, and method of displaying an object Feb. 18, 2003
5989033 Book kit for a drawing game-fun sky Nov. 23, 1999
5971765 Method and system for generating artificial tornadoes and related vortex phenomena Oct. 26, 1999
5865628 Storm mapping system Feb. 2, 1999
4402672 Method for plotting and disseminating information on the paths of violent storms Sep. 6, 1983
4258912 Tornado novelty device Mar. 31, 1981

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