Rutgers, The State University of New Jersey

04/30/1875 Batchelor, Charles -- Technical Notes and Drawings

Electric pen and mimeograph; Chemicals, chemical products, and chemical processes

[MBN001]  Special Collections Series -- Charles Batchelor Collection -- Notebooks: Cat. 1307 (1874-1878)
[MBN001027A; TAEM 90:627]
Courtesy of Thomas Edison National Historical Park.