
【国外标准】 Specification for visual indicator lamps for use in telephone and telegraph switchboards and for allied purposes
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适用范围:
暂无
标准号:
BS 1050:1953
标准名称:
Specification for visual indicator lamps for use in telephone and telegraph switchboards and for allied purposes
英文名称:
Specification for visual indicator lamps for use in telephone and telegraph switchboards and for allied purposes标准状态:
被代替-
发布日期:
1953-01-01 -
实施日期:
出版语种:
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