Joseph A. Ball (inventor): Revision history


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30 November 2023

11 March 2022

9 January 2022

27 April 2021

31 January 2021

11 December 2020

13 August 2020

9 August 2020

14 October 2019

31 January 2019

4 January 2019

18 December 2018

5 December 2018

15 November 2018

23 July 2018

10 February 2017

21 May 2016

22 June 2015

10 December 2014

29 March 2014

11 September 2013

13 February 2013

26 January 2013

23 September 2012

20 July 2012

6 April 2012

23 February 2012