| 摘要 |
<p>IMPROVEMENTS IN TWO-WHEELED HAND TRUCKS A two-wheeled hand truck or dolly structure wherein a primary frame with side rails is mounted on a pair of wheels and a generally forwardly disposed nose part is connected to project forwardly from the primary frame. An axle supports the wheels and axle mounted brackets connect the wheels with the frame. Stair climbers have upper ends releasably clamped to the side rails and lower ends clamped to the brackets.</p> |
