Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5546107 | Automatic chain-based conflation of digital maps The method of the present invention which employs conflation is based on pairing chains of arcs in order to determine the matching intersections between them. The chains are formed a priori in each map by using both attributes and geometric properties of ... | 08/13/1996 |
| 4148057 | Direct laser printing and forming apparatus Direct laser printing and forming apparatus is provided wherein a surface to be printed is coated with an ink which is setable upon being irradiated by energy. The surface to be printed may be selectively irradiated by a source of a directable beam of ene... | 04/03/1979 |
| 4013959 | Transmitter control apparatus A plurality of transmitters, such as radio transmitters, frequently share a common communication medium or path, such as a single radio frequency channel. In order to prevent two transmitters from simultaneously transmitting over the common medium, each t... | 03/22/1977 |
