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jul 29, 1974 - 1974年7 月29日上海手表二厂试制成功中国第一台手表摆轮自动静平衡仪。

Description:

1974年7 月29日上海手表二厂试制成功中国第一台手表摆轮自动静平衡仪。

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工业大事年表

2 Sep 2023

1

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731

Date:

jul 29, 1974

Now

~ 51 years ago

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