[SM001041d], Clipping, English Mechanic, John Toby Sprague, 1873-1882
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Title
[SM001041d], Clipping, English Mechanic, John Toby Sprague, 1873-1882
Bibliographic Citation
Sprague, John Toby. English Mechanic, 1873-1882
Editor's Notes
Bichromate Battery for Bell-ringing - spring-mounted zinc serves as the contact-maker as well as the battery
Date
1873-1882
Type
Folder/Volume ID
SM001-F
Microfilm ID
23:107
Document ID
SM001041d
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University