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William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 5911612 | Foldable, inflatable flotation device with improved retention means A personal flotation device in the form of a vest having two chest portions that are interconnected by a neck portion. The vest fits over a user's head and is secured to the user by way of a belt and a chest strap. The vest is inflatable by the user and i... | 06/15/1999 |
| 5893570 | Fabric coated sled of composite construction A fabric sled for sliding upon snow has a composite contruction in which an interior cushioning assembly is enclosed within opposing top and bottom cover portions. The top cover portion is formed from a durable fabric material and the bottom cover portion... | 04/13/1999 |
| 5857221 | Swim goggles with improved adjustablity A pair of swim goggles for use during water activity, such as swimming. A pair of eyecups are worn by the user and held in place by a pair of elastic cords that encircle the user's head. The cords connect the eyecups together and a nose bridge therebetwee... | 01/12/1999 |
| 5531657 | Modular aquatic exercise equipment assembly A modular aquatic exercise equipment assembly for use by a person in water comprises a gripping bar with water resistance members removeably fixed on opposite ends thereof. Each water resistance member comprises a pair of interlocking components having a ... | 07/02/1996 |
| 5400610 | Portable insulated container with temperature indicator A portable insulated container is provided including a plurality of panels which define a formed body having a mouth opening opposite the bottom of the body. A cover member is also provided for selectively opening and closing the mouth opening. A temperat... | 03/28/1995 |
| 5255834 | Article carriers with incorporated three-dimensional graphical display panels New and improved article carriers are provided in carrier bodies including an integral shaped thermoplastic molded three-dimensional graphical display panel to provide distinctive physical appearance and shock-absorbing protective characteristics in use. ... | 10/26/1993 |
| 5222642 | Article having a selectively changeable visual display An article of luggage with an interior compartment and a visual display unit formed within at least one sidewall of the article. The visual display unit contains distinct first and second visual images, which are formed on separate first and second visual... | 06/29/1993 |
