[N124041], Technical Note, Francis Jehl, Francis Robbins Upton, November 21st, 1880

https://edisondigital.rutgers.edu/document/N124041

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Title

[N124041], Technical Note, Francis Jehl, Francis Robbins Upton, November 21st, 1880

Editor's Notes

Testing lamps "Bast 5 hours Reg vac process 1 hr no spark." GAsoline carbons. [similar calcs, but not sure what they're for]

Date

1880-11-21

Decade

1880-1889

Folder/Volume ID

N124-F

Microfilm ID

37:763

Document ID

N124041

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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