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

https://edisondigital.rutgers.edu/document/N068143

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Title

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

Editor's Notes

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

Folder/Volume ID

N068-F

Microfilm ID

34:676

Document ID

N068143

Publisher

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