John Barton (engineer) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "John Barton (engineer)" in English language version.

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doi.org

A F C Pollard (1938). "The mechanical amplification of small displacements". J. Sci. Instrum. 15 (2): 37. doi:10.1088/0950-7671/15/2/302.
P. Grodzinski (1947–1949). "A Ruling Engine used by Sir John Barton - and its Products". Transactions of the Newcomen Society. 26: 79–88. doi:10.1179/tns.1947.006. Archived from the original on 16 August 2006.

newcomen.com

P. Grodzinski (1947–1949). "A Ruling Engine used by Sir John Barton - and its Products". Transactions of the Newcomen Society. 26: 79–88. doi:10.1179/tns.1947.006. Archived from the original on 16 August 2006.

web.archive.org

P. Grodzinski (1947–1949). "A Ruling Engine used by Sir John Barton - and its Products". Transactions of the Newcomen Society. 26: 79–88. doi:10.1179/tns.1947.006. Archived from the original on 16 August 2006.