[MBN001072], Technical Note, Charles Batchelor, February 4th, 1878

Item

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Title

[MBN001072], Technical Note, Charles Batchelor, February 4th, 1878

Editor's Notes

telephone with varying resistance battery

Date

1878-02-04

Decade

1870-1879

Identifier

MBN001072

Folder Set

MBN001-F

Microfilm ID

90:658

Publisher

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