Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 5251531 | Method and apparatus to prepare monobasic propellant charge powders with alcohol and ether as solvents In the production of monobasic propellant charge powders with alcohol and ether as solvents there is the risk of ether bubbles forming in the propellant charge powder material, and those bubbles greatly reduce the quality of the propellant charge powder. ... | 10/12/1993 |
| 4963296 | Process for the preparation of propellant charge powder A process is provided for the preparation of dibasic propellant charge powder by a solvent-free process, in which a continuous flow of raw powder mixture moist with water is kneaded at an elevated temperature in a set of shearing rollers, to which the raw... | 10/16/1990 |
