[N068143], Technical Note, Ludwig K Boehm, July 7th, 1880

Item

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Abstract

Spark tube for Francis (Jehl?). Glass equip, for Hammer; 677 looks like a filament test vacuum apparatus with spark jump.

Date

1880-07-07

Decade

1880-1889

Identifier

N068143

Folder Set

N068

Title

[N068143], Technical Note, Ludwig K Boehm, July 7th, 1880

Microfilm ID

34:676

Publisher

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