ساعت برقی (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "ساعت برقی" in Persian language version.

refsWebsite

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3,292^nd place

3,529^th place

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ahsoc.org

Ronalds, B.F. (Jun 2015). "Remembering the First Battery-Operated Clock". Antiquarian Horology. Retrieved 8 Apr 2016.

"Famous Names in Electrical Horology". Electrical Horology Group. Antiquarian Horological Society, London, UK. 2011. Archived from the original on 7 May 2012. Retrieved 2011-12-16.

Wise, S. J. (1952). Electric Clocks, 2nd Ed (PDF). London: Heywood & Co. pp. 95–100. Archived from the original (PDF) on 23 February 2014. Retrieved 6 August 2019.

U.S. patent #1283434 Warren, Henry E. Timing device, filed February 26, 1917, issued October 29, 1918, on Google Patents

Elliott, Rod. "Build a Synchronous Clock". Elliott Sound. Archived from the original on 11 July 2018. Retrieved 6 August 2019.
Brimarc, typical quartz clock movement specified accurate to within ±30 seconds/month بایگانی‌شده در ۲۰۱۵-۰۷-۰۴ توسط Wayback Machine
"Famous Names in Electrical Horology". Electrical Horology Group. Antiquarian Horological Society, London, UK. 2011. Archived from the original on 7 May 2012. Retrieved 2011-12-16.
Wise, S. J. (1952). Electric Clocks, 2nd Ed (PDF). London: Heywood & Co. pp. 95–100. Archived from the original (PDF) on 23 February 2014. Retrieved 6 August 2019.

Elliott, Rod. "Build a Synchronous Clock". Elliott Sound. Archived from the original on 11 July 2018. Retrieved 6 August 2019.