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29 jul 1974 ano - 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。

Descrição:

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。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

29 jul 1974 ano

Agora

~ 51 years ago

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