...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7243662 | Hair twister A hair fastening device having the ability to be rolled into a person's hair and then secured within the hair by sliding the device together. The device can be more tightly secured by adding an additional piece which can be attached to the device and concealed withi... | 07/17/2007 |
| 5983904 | Hair curler A hair roller is provided with an hollow outer member enclosing an inner member. A plurality of hair clips is connected to the inner member by flexible roots and connected to the outer member by integral pivot axes. The hair clips extend though longitudin... | 11/16/1999 |
| 5573016 | Two-partite hair curler assembly A two-partite hair curler which includes a first relatively fixed part and a second relatively movable part, movable between an extended and retracted position relative to the first part, whereby the second part has a curler surface on which hair is adapt... | 11/12/1996 |
| 4353380 | Hair curler A hair curler includes a flexible central lattice element 2 flanked by hinged wing elements 3, 4 and having a flattened coil spring 5 mounted thereon under tension, thus tending to roll up the curler. The curler is held open in a first embodiment by a seg... | 10/12/1982 |
| 4020855 | Hair curler having integral retainer A hair curler is provided with pivotally mounted retaining arms at each end of a perforated, cylindrical body for capturing a tress of hair rolled onto the body. The retaining arms are supported at the respective ends of the body by means of pivotal bails... | 05/03/1977 |