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Birtwistle Patents



Published November 14, 2005
Related Searches: patent hair treatment men
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Patent No. US 6,524,563 B1: A research-er for Birtwistle, Edgewater, NJ, patented a hair treatment comprising a particulate substance with a modal primary particle size of 7-40nm, and a Youngs modulus of at least 4 GPa.


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