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jan 8, 1992 - 1992年1月8日上海无线电七厂承担的国家“八五”科技攻关项目——SC20S(A)SC272 接近开关专用电路通过鉴定，填补国内空白。

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1992年1月8日上海无线电七厂承担的国家“八五”科技攻关项目——SC20S(A)SC272 接近开关专用电路通过鉴定，填补国内空白。

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工业大事年表

2 Sep 2023

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731

Date:

jan 8, 1992

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~ 34 years ago

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