Employment of Cheng Yaochun, 1924–: E. I. du Pont de Nemouist Co. (美 E. I. du Pont de Nemouist Co. 1924, Van Tassel Tanning Co. 1933 實習)

 Occupation: id 5842
Organisation
E. I. du Pont de Nemouist Co. (Du Pont 公司)
Original occupation text
美 E. I. du Pont de Nemouist Co. 1924, Van Tassel Tanning Co. 1933 實習
Range - Start date
1924
 
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Cheng, Yaochun 程耀椿 (1900–)
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