Url https://edisondigital.rutgers.edu/document/X079J Resource class dctype:Text Title [X079J] Letter, Undated Creator Edison, Thomas Alva Subject World War I Patents Chemicals, chemical products, and chemical processes Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Type Letter Identifier X079J Relation Hirzel, Heinrich Rights Ann A Hardy Is Part Of X079-F Recipient Hardy, William Abbott Uri https://edisondigital.rutgers.edu/document/X079J https://edisondigital.rutgers.edu/document/X079J --