U.S. patent number D452,320 [Application Number D/136,244] was granted by the patent office on 2001-12-18 for encased stone dental model base. Invention is credited to Ronald E. Huffman.
United States Patent | D452,320 |
Huffman | December 18, 2001 |
Inventors: | Huffman; Ronald E. (Sapulpa, OK) |
---|---|
Appl. No.: | D/136,244 |
Filed: | January 26, 2001 |
Current U.S. Class: | D24/176 |
Current International Class: | 2401 |
Field of Search: | ;D24/176,181 ;249/124 ;264/334 ;433/6,34,60,61,64,74,213 |
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