Granted Patent
Utility
US 4,577,219 · App. 06/556,330
Method and an apparatus for copying retouch in electronic color picture reproduction
Inventors:
Jurgen Klie, Rainer Nehl
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Nov 30, 1983
Inventors
Jurgen Klie
Rainer Nehl
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.