Granted Patent
Utility
US 4,893,015 · App. 07/032,692
Dual mode radiographic measurement method and device
Inventors:
Klaus Kubierschky, Herbert L. Aronson
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Apr 1, 1987
Inventors
Klaus Kubierschky
Herbert L. Aronson
Assignee (at issue)
American Science and Engineering, 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.