The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7083239 | Bicycle rim A reinforced annular bicycle rim is provided that includes a tire attachment portion and a spoke attachment portion fixedly coupled with the tire attachment portion to form an annular hollow area. A plurality of separate reinforcement members are fixedly coupled to ... | 08/01/2006 |
| 7013758 | Apparatus for removing shingles and shingle fasteners from a roof An apparatus for removing shingles and shingle fasteners from a roof. The apparatus comprises a frame and a driver unit coupled to the frame, the driver unit including at least one motor. The apparatus also comprises a stripping unit coupled to the driver unit, the ... | 03/21/2006 |
| 6090194 | Cubic leucite-containing dental porcelains A dental porcelain composition comprising a continuous glassy phase and a discontinuous, substantially uniform crystalline phase comprising cubic leucite. The porcelain exhibits coefficients of thermal expansion in the range of about 11 to about 17×10 | 07/18/2000 |
| 5081193 | Low gloss agents, process for production thereof, low gloss thermoplastic resin compositions, and molded articles A grafted copolymer containing low cis-polybutadiene having a Mooney viscosity of 30 to 40 as a rubber component, and 30% by volume or more of particles of said rubber component becoming non-spherical rubber particles when molded into a molded article, is... | 01/14/1992 |
| 4583787 | Slanting bushes for rims of bicycle wheels To improve the geometrical arrangement of spoked wheels for bicycles or motorcycles and lengthen the life thereof, the spoke nipples are applied on the wheel rims by means of bushes formed of two cylindrical coaxial bodies of different diameter for housin... | 04/22/1986 |