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 |
| 4745716 | Structural water control A product useful for preventing water seepage onto a floor in a structure having a foundation, a footing, a floor and a drain below the floor, including a barrier having a cross-sectional shape which forms conduit portions and contact portions, the barrie... | 05/24/1988 |
| 4742619 | Marking tool with wear rims A tool useful for marking and constructed of a flexible material which includes a flat member having a structural layer of a predetermined shape with first and second parallel surfaces, the structural layer having marking edges perpendicular to the first ... | 05/10/1988 |
| 4558533 | Pistol grips with counterbalancing platforms A pistol grip for use with a pistol having a barrel with a predetermined line of flight of a bullet and a predetermined center of gravity, including a grip which is affixed to the pistol, a platform extending from the grip, and a support portion of the pl... | 12/17/1985 |
| 4513510 | Measuring tool A measuring tool including a flat member having the shape of a right triangle and having upper and lower surfaces and a first side and second side which form a right angle at their intersection, a tee affixed along the edge of the first side which is perp... | 04/30/1985 |
| 4501788 | Waterproofing soil A method and a product providing for waterproofing soil utilizing a flexible non-biodegradable support capable of venting gas coated with water swellable bentonite and covering the soil to be waterproofed with the coated support.... | 02/26/1985 |
| 4368601 | Gutter improvement A device for use with guttering, troughs and downspouts which collects water and blocking debris, including a channel open at one end including a chute portion and a pair of side walls capable of being attached to a trough so that the chute portion is ali... | 01/18/1983 |
| 4236688 | Anchoring devices An anchor useful for attaching articles to a member of predetermined width including a support section, a pair of arms extending from the support section, each arm extending to an end away from the support section, a retainer at each of the ends of the ar... | 12/02/1980 |