Sun Yun-Xuan sent the letter to Pan, inviting him to take the Director of Technical Advisory Committee post and seek recommendations for a candidate in eletronics to take charge of Electronic Services and Training Center of Jordan Royal Scientific Society.
An offer letter from Sun Yun-Xuan to invite Pan Wen-Yuan to take the post of director of Technical Advisory Committee
.jpg "An offer letter from Sun Yun-Xuan to invite Pan Wen-Yuan to take the post of director of Technical Advisory Committee")
.jpg "Patents： The United States of America")
