Did You Know...
...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 |
| 7600275 | Portable furniture combination and carrier A portable furniture combination and carrier comprising a shell having a back wall, a bottom, a first fixed side and a second fixed side, and a flexible base having a first wing detachably connectable to the first fixed side and hingedly connectable to the base and ... | 10/13/2009 |
| 7118020 | Stapler A stapler is provided for stapling decorative staples into a sheet media, where the decorative staples have an indicia platform and a plurality of prongs. The stapler includes a base and a cartridge assembly pivotably mounted to the base. The cartridge assembly has ... | 10/10/2006 |
| 6315276 | Spring seating support system A spring seating support system with a hard front edge that is pivotally connected to an upper support wire grid. The wire grid consists of latitudinal wires which contact and hold in place the uppermost portion of rows of coil springs, and longitudinal w... | 11/13/2001 |
| 5681164 | Orthodontic appliance An orthopaedic modular assembly comprises a housing component of rigid material providing a first passage, a second component in the form of a lingual pad support having a first arm adapted to form a sliding fit within the first housing passage and a seco... | 10/28/1997 |
| 4827763 | Pressure mapping system with capacitive measuring pad A pressure distribution measuring system includes a pad of insulating material disposed between two linear arrays of electrodes to form a matrix of capacitive nodes. A capacitance related output signal that is obtained from a node of interest is used as a... | 05/09/1989 |
