| 摘要 |
The invention essentially comprises a scraping device for mounting at the end of a rod, having a body comprising a plurality of radial extending arms. At the ends of each arm is the scraping surface. The construction of this scraping device is such that when the device is positioned in a flue or like structure, debris and incrustations can be scraped therefrom by a reciprocal movement of the scraping device against the surface to be cleaned.
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