[D8230L], Letter from Francis Robbins Upton to Thomas Alva Edison, January 20th, 1882

https://edisondigital.rutgers.edu/document/D8230L

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Title

[D8230L], Letter from Francis Robbins Upton to Thomas Alva Edison, January 20th, 1882

Editor's Notes

Lamps with charcoal inside did not show longer life than the usual kind of lamp.

Date

1882-01-20

Decade

1880-1889

Type

Folder/Volume ID

D8230-F

Microfilm ID

61:731

Document ID

D8230L

Publisher

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