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 |
| 7143540 | Fish handling system for big game tube fishing A Fish Handling System For Big Game Tube Fishing is a single unit comprised of both a landing net and raised tabletop/inch incremented measuring board supported by a platform mounted atop two pontoons. Landing net access is obtained by lifting the hinged table/measu... | 12/05/2006 |
| 6598552 | Pontoon having a cross section with a non-uniform diameter and boat having same A pontoon includes an elongated body of non-uniform diameter. The body is dimensioned and configured to provide a non-uniform buoyant force to a boat along at least a majority of a length of a boat. Also provided is a pontoon boat including pontoons as de... | 07/29/2003 |
| 6199676 | Inflatable tubular structure with spiral seam An inflatable structure comprises an inflatable tubular member that is constructed of an elongate, flexible strip of woven fabric that is impervious to air and water. The elongate strip has a first elongate edge and a second elongate edge and is spiraled ... | 03/13/2001 |
| 5707724 | Fractal tube reinforcement Fractal hollow tube reinforced structural members are presented having a maximum strength-to-weight ratio and a wall density less than 1/2 that of water, which are versatile, practical and economical for use in any kind of construction. The strength is ma... | 01/13/1998 |
| 4919632 | Collapsible one-man pontoon fishing raft A collapsible fishing raft comprising pontoons, a means of connecting the said pontoons and a seat, which components are capable of being transported by one person by backpack or pack frame over high mountain foot trails.... | 04/24/1990 |
| 4886015 | Modular flotation support collar assembly for aquaculture fish pen A modular marine flotation collar for aquaculture applications is disclosed. Component collar segments are sealed by bulkheads including a connecting flange. Standard component collar segments may be assembled into a desired configuration by flange-to-fla... | 12/12/1989 |
| 4843992 | Air tube protected by belts The cylindrical shape tube consists of a pressure valve and a safety valve. Whether the tube's contents be made of metal, expandable or non-stretchable materials, it has the ability to retain low air pressure. For safety purposes, any excess air pressure ... | 07/04/1989 |