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 |
| 6158261 | Mill for producing axially symmetric parts A mill for producing axially symmetric parts which has a means (35, 36) for fixing the billet under process with a possibility of its rotating about its own axis, rolling rolls (1, 2, 3, 4), a working furnace (44) provided with openings for inserting the ... | 12/12/2000 |
| 4134284 | Method and apparatus for the manufacture of hollow bodies Hollow bodies are produced from deformable plane or conically shaped blanks by rotating the blanks about an axis extending at least approximately through the cross-sectional center of gravity of the hollow body to be formed and simultaneously forming undu... | 01/16/1979 |
