Employment of Li Yongping, 1930–: 鶴岡煤礦公司 (工程師)

 Occupation: id 37427
Organisation
鶴岡煤礦公司 (鶴岡煤礦)
Original occupation text
工程師
Range - Start date
1930
 
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Li, Yongping 李用平 (1898–)
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