Joy valve gear (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Joy valve gear" in English language version.

refsWebsite

Global rank English rank

1steamindex.com

low place

low place

1web.archive.org

1^st place

1^st place

800^th place

676^th place

489^th place

377^th place

espacenet.com

worldwide.espacenet.com

"Espacenet - Original document". worldwide.espacenet.com. Retrieved 20 January 2021.

gutenberg.org

Scientific American Supplement, No. 458, October 11, 1884 by Various

steamindex.com

"David Joy's Diaries". 1878–9 Winter. Archived from the original on 4 March 2015. Retrieved 10 February 2015.

web.archive.org

"David Joy's Diaries". 1878–9 Winter. Archived from the original on 4 March 2015. Retrieved 10 February 2015.