[LB025050A], Letter from Thomas Alva Edison to Colin D Anderson, August 9th, 1887

Item

Abstract

I have your letter of the 1st instant in reference to a new vacuum process. I have tried a great many of these pumps without any success, and have decided that the method which I employ is the best. It does not take ten hours to create a vacuum as you state, but only one hour, and I believe that I can obtain as much work from my system as from any in the market.

Recipient

Date

1887-08-09

Decade

1880-1889

Type

Identifier

LB025050A

Folder Set

LB025

Title

[LB025050A], Letter from Thomas Alva Edison to Colin D Anderson, August 9th, 1887

Microfilm ID

138:197

Publisher

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