| 摘要 |
PROBLEM TO BE SOLVED: To provide a scale having installed thereon a light, a magnification lens, permanent magnets for attachment to a steel product and locking a dial plate, and a level gauge. SOLUTION: A light (1), a dry battery necessary for a power source (2), and a sliding rotary magnification lens (3) are installed in the upper part of the scale. A level gauge (4), a permanent magnet for steel attachment (5), and a permanent magnet (6) as a stopper are installed in the lower part of the scale. COPYRIGHT: (C)2004,JPO
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