UL 863-2007 标准详情
- 标准号:UL 863-2007
- 中文标题:时间显示和记录装置
- 英文标题:standard for temperature-indicating and -regulating equipment
- 标准类别:美国保险商实验室标准UL
- 发布日期:2007-11-16
These requirements cover electrically-operated clocks that form parts of a master clock system, secondary, cost, pay-roll, and other clocks intended primarily for industrial installations; and also time stamps, job-card recorders, timers, and similar
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