[D8807AAF], Letter from Scientific American, George Milton Hopkins to Thomas Alva Edison, February 4th, 1888

Item

Abstract

I have tried to get the date of the phonoplex patents through the telephone but have not received. We want more information as in the construction of the instruments. Will you please give dates of patents or send description of the mechanical construction and oblige.

Date

1888-02-04

Decade

1880-1889

Type

Identifier

D8807AAF

Folder Set

D8807

Title

[D8807AAF], Letter from Scientific American, George Milton Hopkins to Thomas Alva Edison, February 4th, 1888

Microfilm ID

121:687

Publisher

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