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Thomas Watson, chairman of IBM ; 1943
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| Number | Title | Issue Date |
| 6945255 | Hair roller with a ceramic coating A hair care appliance has a body with an outer layer, and a first end and a second end connected to the body. The first end and the second end are for grasping the hair care appliance. The hair care appliance also has an adhesive layer on the outer layer of the body... | 09/20/2005 |
| 5881740 | Hair curling device and method of use A curler and a method of use for curling hair, e.g., the synthetic hair of a doll. The curler has an elongated rod, an elongated pressure applicator, and pivotable connector enabling the rod to be pivoted from an open position wherein it is located spaced... | 03/16/1999 |
| 5855213 | Permanent wave clip The permanent wave clip (1) has three curlers (2,3,4) which can be arranged parallel to each other including a releasable and exchangeable hair tip curler (6) rotatable about its axis which is clipped in a curler holder (7). A curler (2), which is a hair ... | 01/05/1999 |
| 5740820 | Hair rollers with enhanced hair rolling and setting features A hair roller includes an elongated body, a hair clip, and an elastic anchoring element. The body has an annular shape around which hair can be wound for styling person's hair. The hair clip has a hair-engagable blade portion and a lever portion. The blad... | 04/21/1998 |
| 5201329 | Permanent wave rod having hinged end-cap A permanent wave rod having an elastic band to which tension is applied to hold the permanent wave rod in place against hair. Tension is applied to the elastic band by an end cap which is pivotally attached to the body of the permanent wave rod, and which... | 04/13/1993 |
| 4867185 | Hair waving device A hair waving device which can be quickly and easily interconnected with adjacent devices of identical construction so that the devices disposed proximate the outer extremities of the strand of hair to be waved, where the individual hairs are very fine, a... | 09/19/1989 |
| 4605021 | Self-tensioning hair waving rod The self-tensioning hair waving rod includes a cylindrical sponge body and retainer means for holding a strand of hair wrapped around the sponge body. The sponge body is formed of a hydrophilic polymer which expands from a dry condition on application of ... | 08/12/1986 |
| 4344447 | Double twist hair roller A hair roller is provided having a generally cylindrical body portion with two end caps which stretch a band of rubber or like resilient material across the surface of the body, the two end caps being rotatable in opposite directions to cause the band to ... | 08/17/1982 |