Please refrain from making unconstructive edits to Wikipedia, as you did to Joseph Engelberger. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Thank you.
Welcome to Wikipedia. The you made to the page George Devol has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. AndrewrpTally-ho! 14:48, 24 August 2009 (UTC)