Watkin's Electric Range Indicator: Revision history

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17 July 2015

16 July 2015

  • curprev 20:3520:35, 16 July 2015Tone talk contribs 397 bytes +397 Created page with "'''Watkin's Electric Range Indicator''' was an electrical shipboard transmitter/receiver pair evaluated by the Royal Navy around 1894. Upon its first mention, it was desc..."