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Article: South Korean Inventor Develops Vacuum Cleaner Buffer Structured Castor Wheel
- Article from:
- US Fed News Service, Including US State News
- Article date:
- September 15, 2006
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ALEXANDRIA, Va., Sept. 15 -- Heon Pyeong Jl of Pusankwangyok-shi, South Korea, has developed a buffer structured castor wheel for a vacuum cleaner for moving and changing a direction of the vacuum cleaner.
According to the U.S. Patent & Trademark Office: "Buffer structured castor wheel for a vacuum cleaner, which is modified and disposed appropriately for preventing the vacuum cleaner from bitting a wall and the like directly, including two or more than two castor wheel assemblies fitted to a front bottom of a vacuum cleaner body each capable of two axes rotation and having a portion protruded beyond an outline of the vacuum cleaner body."
The inventor was issued U.S. Patent No. ...
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