Url,"Resource class",Title,Creator,Subject,Description,Publisher,Date,Type,Format,Identifier,Source,Relation,Rights,"Alternative Title","Date Created","Date Issued","Has Version","Is Part Of","Has Format","Temporal Coverage","Date Accepted","Bibliographic Citation",Recipient,Uri https://edisondigital.rutgers.edu/document/QB001AAP,dctype:Text,"[QB001AAP], Letter from Frank Lewis Dyer to August Hagelin, April 20th, 1906","Dyer, Frank Lewis","Competition and market structure | Patent and legal counsel | Electric battery",,"Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University",1906-04-20,Letter,,QB001AAP,222:685,"Kolner Akkumulatoren Werke Gottfried Hagen | Sweden. Patent Office | Jungner, Ernest Waldemar | Hultman, J Ad | Edison, Thomas Alva","Thomas Edison National Historical Park",,1906-04-20,,"https://archive.org/details/edisonmicrofilm222/page/n694/mode/1up Archive.org Viewer, Microfilm Series Reel 222",QB001-F,,,,,"Hagelin, August","https://edisondigital.rutgers.edu/document/QB001AAP https://edisondigital.rutgers.edu/document/QB001AAP"