| 摘要 |
<p>A gauge rod (510) and system (500) for measuring the height of a course of bricks. A rotatably fixable and removable string block (400) provides simple positioning of a string line. Elongate faces of the gauge rod (510) may be concave to protect gradations, and may comprise captured snap-fit resilient strips (530) to provide versatility to the rod configuration at the time of production and/or during use.</p> |
