File:US patent 1108529-003-5.png

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Charles R. Underhill: Telegraph System  wikidata:Q126855030 reasonator:Q126855030 https://en.wikisource.org/wiki/Index:United_States_patent_1108529.pdf
Author
Charles R. Underhill  (1877–1947)  wikidata:Q73423551 s:en:Author:Charles Reginald Underhill
 
Charles R. Underhill
Alternative names
Charles Reginald Underhill
Description American inventor and writer
Date of birth/death 1877 Edit this at Wikidata 1947 Edit this at Wikidata
Authority file
creator QS:P170,Q73423551
 Edit this at Wikidata
image of artwork listed in title parameter on this page
Title
Telegraph System Edit this at Wikidata
title QS:P1476,en:"Telegraph System Edit this at Wikidata"
label QS:Len,"Telegraph System Edit this at Wikidata"
Object type version, edition or translation Edit this at Wikidata
Description
Telegraph system
Language English Edit this at Wikidata
Publication date 25 August 1914 Edit this at Wikidata
Source File:United States patent 1108529.pdf
This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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current11:47, 25 June 2024Thumbnail for version as of 11:47, 25 June 20241,421 × 887 (823 KB)RaboKarbakian (talk | contribs){{Book |Description=Telegraph system |Source=File:United States patent 1108529.pdf |Image page = 3 |other_versions= |wikidata = Q126855030 }} {{PD-scan|PD-US-expired}} Category:United States patent 1108529

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