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description

Summary

The 1895 Patent diagram of the Phonopore telephonic system

label_outline

Tags

patent drawings telegraphy telephones high resolution diagram inventions
date_range

Date

1895
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Source

Wikimedia Commons
link

Link

http://commons.wikimedia.org/
copyright

Copyright info

public domain

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Hello!! Josh, don't you forget to bring home some Union Pacific Tea Co's Tea. To-night, you understand. [back]

Topics

patent drawings telegraphy telephones high resolution diagram inventions