We are very sorry to be unable to give you the information you desire.
Our Invention and Discovery Department is not in any sense an
advertisement column.
We have facilities for learning of all the latest inventions, and we
give our readers those that we think would be of interest to them. We
can, if you wish, give you the name and address of the inventor of the
brush, but we cannot tell you if it is already on the market. EDITOR.