Material Production unites very different categories.
It includes licensing of design
A very interesting thread is here * 02807.html
And private legislation (contract, agreement or treaty) over physical material
PropertyLeft is to PropertyRight as CopyLeft is to CopyRight.
The GNU General Public Law as published by the Personal Sovereignty Foundation is a trade agreement between owners of physical objects designed to insure user freedom by causing new consumers to become partial controlling owners in the means of production based on the amount they are willing to pay above cost. What is usually called profit is now an investment for that consumer to grow.