[D8020ZIV1], Patent Issued, Benjamin F Card, December 30th, 1879

Item

Abstract

B. F. Card patent of meter for measuring electricity (Dec 30 1879). [Complex device using induction in wire helix to move gear wheels attached to indicator.]

Date

1879-12-30

Decade

1870-1879

Identifier

D8020ZIV1

Folder Set

D8020

Title

[D8020ZIV1], Patent Issued, Benjamin F Card, December 30th, 1879

Microfilm ID

53:943

Publisher

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