Triger (Estonian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Triger" in Estonian language version.

refsWebsite
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1st place
1st place

web.archive.org

  • William Henry Eccles and Frank Wilfred Jordan, "Improvements in ionic relays" British patent number: GB 148582 (filed: 21 June 1918; published: 5 August 1920).