| 摘要 |
An improved ladder-supported scaffolding technique and system using a pair of horizontally spaced vertical ladders for supporting staging planks therebetween and held vertically and rigidly by top brackets parallely in front of, along, and spaced from a building structure, and having adjustable brackets attachable to intermediate ladder rungs with staging plank-supporting legs perpendicularly extending toward or away from the building structure.
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