Items

• [E1929CZ], Letter from William J Gross to Chemical and Metallurgical Engineering, Thomas Alva Edison, August 4th, 1919
  1919-08-04
• [E1929DG], Letter from William J Gross to William Henry Meadowcroft, August 16th, 1919
  1919-08-16
• [E1929DH], Questionnaire, William J Gross, August 20th, 1919
  1919-08-20
• [E1929DT], Letter from William J Gross to Thomas Alva Edison, August 27th, 1919
  1919-08-27