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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 |
| 4652202 | Lift mechanism A lift mechanism of a "fork-lift" type is capable of use on the input and output sides of machines for processing sheets of particle board, plywood and similar products. The mechanism itself has the sheets of product to be processed stacked on a pair of s... | 03/24/1987 |
