User talk:BabylonAS/Redstone Alternatives/Tutorials

Who invented "My Sand Lock"?
On this page, there is a lock that I discovered myself. I have built something like that on February or March, on Pocket Edition version 0.8.1. But I am interested: who actually invented it? And when? --Naista2002 (talk) 14:17, 18 August 2014 (UTC)