[N124159], Technical Note, Francis Jehl, Francis Robbins Upton, December 15th, 1880

https://edisondigital.rutgers.edu/document/N124159

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Title

[N124159], Technical Note, Francis Jehl, Francis Robbins Upton, December 15th, 1880

Editor's Notes

Still more lamp tests: cp; ohms; lamps per HP. Some 1/3 length filaments. {Very dull stuff}

Date

1880-12-15

Decade

1880-1889

Folder/Volume ID

N124-F

Microfilm ID

37:821

Document ID

N124159

Publisher

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