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 |
| 4215144 | Method of treating and controlling gingivitis The method of treating and controlling gingivitis and related periodontal diseases of the gingival tissue. The method includes contacting the diseased gingival tissue with a mouthwash. The mouthwash is a liquefied composition of 0.5 to 10 percent by weigh... | 07/29/1980 |
| 4214006 | Mouthwash and method for preventing and removing dental plaque The method of treating teeth for the removal of dental plaque and/or dental calculus from said teeth, and the prevention of the formation thereof thereon. The method involves contacting the teeth with a sufficient and effective amount to achieve such purp... | 07/22/1980 |
