Granted Patent
Utility
US 4,625,104 · App. 06/626,221
Dual scan optical pattern tracer
Inventors:
Robert E. Parker, Ronald J. Luker
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Jun 29, 1984
Inventors
Robert E. Parker
Ronald J. Luker
Assignee (at issue)
Westinghouse Canada Inc.
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.