It’s official: John Deere and General Motors want to eviscerate the notion of ownership.
Z950R Owner Information, Parts & Service
You Can Now Fix Your Deere
We Can't Let John Deere Destroy the Very Idea of Ownership
Farmers can't legally fix their own John Deere tractors due to copyright laws - The American Genius
John Deere just told the copyright office that only corporations can own property, humans can only license it - Boing Boing
So you think you own your bike? Maybe. Maybe not.
Fall Fest throws spotlight on Waterloo-built John Deere tractors
Agricultural machinery - Wikipedia
John Deere Tractor Models: A Visual Guide, MachineFinder