Granted Patent
Utility
US 4,352,973 · App. 06/122,893
Machine for simultaneously turning and laser engraving printing cylinders
Inventor:
Bryan Chase
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Feb 19, 1980
Inventor
Bryan Chase
Assignee (at issue)
Crosfield Electronics 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.