Employment of Du Guo'an, 1940–: 資源委員會四川油礦探勘處 (鑛務技術員)

 Occupation: id 51161
Organisation
資源委員會四川油礦探勘處 (四川油礦探勘處)
Original occupation text
鑛務技術員
Range - Start date
1940
 
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Du, Guo'an 杜國安 (1912–)
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