[D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880

Item

Abstract

What fraction of HP nec for 1 ELight equal to 1 coal lamp for 1 hour? Making "hand compressed air engine" to allow for rural & agricultural uses. Marg: "1/5 of hp will do."

Author

Date

1880-04-12

Decade

1880-1889

Type

Identifier

D8006P

Folder Set

D8006

Title

[D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880

Microfilm ID

53:314

Publisher

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