| 摘要 |
PROBLEM TO BE SOLVED: To develop a tool which enables easy sheet peeling work in rooftop slab repair work. SOLUTION: A winch 1 that pulls the end of a waterproof sheet held by a clamp 4 is mounted in the upper part of a ladder, and the waterproof sheet is peeled off. COPYRIGHT: (C)2011,JPO&INPIT
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