Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7247101 | Billiard target practice device An apparatus for billiards practice, comprising a housing; an emitter connectively disposed to the housing; a pair of detectors equally spaced about the emitter; a controller having logic controlling the emitter; at least one indicator in communication with the logi... | 07/24/2007 |
| 6582316 | Method and device for developing accurate aim An accuracy development device is disclosed, including a simulated projectile coupled to a feedback mechanism. The feedback mechanism provides feedback indicating whether a desired impact point on the simulated projectile has been hit by a free projectile... | 06/24/2003 |
| 6443859 | Baseball training apparatus A baseball training apparatus includes a body, a drive assembly connected to the body, the drive assembly configured to impart motion on to the ball, a ball interface device connected to the body, the ball interface device configured for movement between ... | 09/03/2002 |
| 5704612 | Arcade game with color sensing apparatus An arcade game including a number of playing pieces having distinct colors and a number of targets associated with at least one of the distinct colors. A sensor apparatus is arranged to sense the color of a playing piece received by a target. The targets ... | 01/06/1998 |
| 4948128 | Poker pool table A pool table designed to allow various poker games to be played using card values visibly marked on the balls and/or using plain unmarked balls. The plain unmarked balls have a unique electric name tag encoded therein which is read by an electronic reader... | 08/14/1990 |
| 4549737 | Pool-type marble game A pool-type marble game having a round rotatable game board, a pivotable and rotatable support structure including a central hub having five legs extending radially therefrom for supporting said game board from either a table top or another type support s... | 10/29/1985 |
| 4524969 | Billiard apparatus having sensors in lieu of pockets A billiard table has a playing area bordered by a cushion. The pockets found in a typical pool billiard table are replced by sensor fields disposed in the plane of the playing area having contactless sensors associated therewith responsive to the presence... | 06/25/1985 |
