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 |
| 4893716 | Claw coupling for toy and model trains A claw coupling for toy model trains includes a coupling support head having a hook and a claw along with a pivotal support pivotably mounting the claw on the coupling support head for movement between a coupled and an uncoupled position. A decoupling pin... | 01/16/1990 |
| 4765496 | Claw coupling for toy and model trains Claw coupling for electric toy and model trains, with a pre-uncoupling device with a claw, which can be swivelled in a horizontal plane and hooked from the side into a rigid hook of the respective opposite anchoring bracket, with a support pin resting in ... | 08/23/1988 |
| 4344542 | Railway gang car coupler A coupling device for railway motor cars includes a pole or tongue on the motor car with a cam member pivoted on the distal end thereof. A coupling box with converging side walls is secured to the end of the trailing car and has a coupling pin extending f... | 08/17/1982 |