[D8230ZCE], Letter from Francis Robbins Upton to Thomas Alva Edison, October 4th, 1882

https://edisondigital.rutgers.edu/document/D8230ZCE

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Title

[D8230ZCE], Letter from Francis Robbins Upton to Thomas Alva Edison, October 4th, 1882

Editor's Notes

"I have examined the principles of Mr [Boucher de Boucherville?] mercury pump. I think the pmup will work and that it embodies a new and patentable idea. That it will produce a vacuum cheaper than the present pump is to me, however, very doubtful."

Date

1882-10-04

Type

Folder/Volume ID

D8230-F

Microfilm ID

61:831

Document ID

D8230ZCE

Publisher

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