Keywords: Letter from US gov to Qian Xuesen, allowing him to leave the US.JPG zh-cn 1955年8 4日,美国移民及归化 致信钱学森,取消对他的禁令,允许其离 美国 图为上海交 大学钱学森图书馆藏信件原件 en A letter from the US Immigration and Naturalization Service to Qian Xuesen dated August 4 1955 in which he was notified he was allowed to leave the US The original copy is owned by Qian Xuesen Library of Shanghai Jiao Tong University where the photo was taken 1955-08-04 photo taken on 2015-09-25 zh-cn 上海交 大学钱学森图书馆藏文物 en Original copy owned by Qian Xuesen Library of Shanghai Jiao Tong University en Immigration and Naturalization Service of the United States of America other versions 31 202822222222 121 43092222222 heading 187 81985294117646 PD-USGov Uploaded with UploadWizard Qian Xuesen August 1955 in North America |