Granted Patent
Utility
US 4,373,603 · App. 06/240,698
Automatic crab steering
Inventor:
Carl Nelson
Patented Case
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Granted: Feb 15, 1983
Filed: Mar 5, 1981
Inventor
Carl Nelson
Assignee (at issue)
J. I. Case Company
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.