Granted Patent
Utility
US 4,129,047 · App. 05/811,229
Control arrangement
Inventor:
Arthur E. Dornan
Patented Case
View Patent ↗
Granted: Dec 12, 1978
Filed: Jun 29, 1977
Inventor
Arthur E. Dornan
Assignee (at issue)
Massey Ferguson Group Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.