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

https://edisondigital.rutgers.edu/document/D8020ZIV1

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Title

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

Editor's Notes

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

Folder/Volume ID

D8020-F

Microfilm ID

53:943

Document ID

D8020ZIV1

Publisher

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