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- BS 448:1932 Radio valve-bases and valve sockets

【国外标准】 Radio valve-bases and valve sockets
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适用范围:
暂无
标准号:
BS 448:1932
标准名称:
Radio valve-bases and valve sockets
英文名称:
Radio valve-bases and valve sockets标准状态:
被代替-
发布日期:
1932-02-05 -
实施日期:
出版语种:
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