Employment of Yao Erkang,–: 鶴岡煤礦公司 (駐礦機電部主任)

 Occupation: id 43805
Organisation
鶴岡煤礦公司 (鶴岡煤礦)
Original occupation text
駐礦機電部主任
 
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Yao, Erkang 姚爾康 (1904–)
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