U.S. patent number D324,649 [Application Number 07/365,235] was granted by the patent office on 1992-03-17 for thumb tack. Invention is credited to Earl H. Lederhaus, Jr..
United States Patent | D324,649 |
Lederhaus, Jr. | March 17, 1992 |
Inventors: | Lederhaus, Jr.; Earl H. (New London, WI) |
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Appl. No.: | 07/365,235 |
Filed: | June 12, 1989 |
Current U.S. Class: | D8/391 |
Field of Search: | ;D8/388,391 ;411/439,451,455,484,487,493,497,509,510 |
170190 | November 1875 | Pratt |
0425080 | Jun 1948 | IT | |||
Decorative Upholstery Nails & Furniture Glides; p. 21; Fastener (far left). . Decorative Upholstery Nails & Furniture Glides; p. 8; Nail #258.. |
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