Items

Items

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  [E1929CF], Letter from Dr U Y Yen, China. Ministry of Education. Educational Bureau to Thomas Alva Edison, July 24th, 1919

  1919-07-24
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  [E1929CN], Letter from William Henry Meadowcroft to China. Ministry of Education. Educational Bureau, Dr U Y Yen, July 28th, 1919

  1919-07-28
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  [E1929FB], Letter from Thomas Alva Edison to China. Ministry of Education. Educational Bureau, Dr U Y Yen, September 25th, 1919

  1919-09-25
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  [E1929FC], Letter from China. Ministry of Education. Educational Bureau, Dr U Y Yen to Thomas Alva Edison, September 30th, 1919

  1919-09-30
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  [E1929FD], Letter from Thomas Alva Edison to China. Ministry of Education. Educational Bureau, Dr U Y Yen, October 6th, 1919

  1919-10-06
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  [NB254A80], Technical Note, Elmer Ellsworth Dougherty, January 9th, 1920

  1920-01-09
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  [NB254BAD], Technical Note, Elmer Ellsworth Dougherty, February 19th, 1920

  1920-02-19
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  [NP119075], Diary, Thomas Alva Edison, July 18th, 1919

  1919-07-18
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  [NP120125], Diary, Thomas Alva Edison, December 1919

  1919-12-00
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  [NP121022] Diary, c. 1919

  1919-00-00
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  [PT5125A], Technical Note, Thomas Alva Edison, September 12th, 1921

  1921-09-12
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  [PT5125C] Memorandum, c. 1921

  1921-00-00