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Licence
All of the original content on this site is licenced under a Creative Commons Attribution-Share Alike 4.0 International licence.
However, due to the nature of the subject, there may be a number of marketing images, catalog pages, drawings and other content that are copyrighted by various manufacturers or other firms.
As the nature and purpose of this wiki is to be a non-profit, educational resource, It should come as no surprise that their employment on this wiki should fall under Fair Use, or similar doctrines.