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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 5371498 | Circuit for recognizing key inputs A circuit for recognizing double key inputs includes a key input part, a key signal generating part, a comparing circuit and a detecting part, the key signal generating part operates simultaneously with the key input of the key input part and generates a ... | 12/06/1994 |
