๐”– Bobbio Scriptorium
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Electric signal report


Publisher
Elsevier Science
Year
1886
Tongue
English
Weight
531 KB
Volume
121
Category
Article
ISSN
0016-0032

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The Committee of the Electrical Section of the Franklin Institute of the State of Pennsylvania, to which was re~hrred fbr examination Blodgett Bros, of Boston, Electric Signal Clock, report that they have examined the invention, and find its purpose and construction substantially to be as follows โ€ข

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