| 摘要 |
<p>Apparatus for repeated marking at regular intervals during roof lathing, planking or tiling in the building industry, consisting of a drum-like body, of which the cylindrical outer coat is provided with marker elements (13) at a pre-set distance from each other, and on the axis of which (9, 10) a supportive device is hinged (1), allowing the apparatus to roll across the part of the component which is to be marked.</p> |
