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 |
| 7357602 | Reinforcing device and a bifacial reinforcing unit for earthworks and a method for the production of a reinforced earthwork A reinforcing device for earthworks comprises at least one reinforcing base element (3) from which extend a front wall (9) and a containment wall (15) which are spaced from each other to delimit, in an operative configuration in which they are e... | 04/15/2008 |
| 6299110 | Protective netting comprising connected crossed cables, for example, snow or ground netting Protective netting comprises cables (11, 12) crossing in pairs and defining intersection points (10) at which the pairs of cables (11, 12) are fixed together by a connection (13, 14, 15, 16) comprising two first wires (13, 15) each of which has windings a... | 10/09/2001 |
| 5368410 | Process for making a mattress-type gabion for soil stabilization Mattress Gabions are provided for soil stabilization revetments, designed to halt erosion and/or to consolidate the soil. A protective revetment consisting of a structure of vegetable matter forms a mattress gabion which retains the soil inside each of a ... | 11/29/1994 |