Granted Patent
Utility
US 4,448,099 · App. 06/328,380
Work handling method
Inventors:
Naoki Kuroda, Kimihiro Tsuge
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Dec 7, 1981
Inventors
Naoki Kuroda
Kimihiro Tsuge
Assignee (at issue)
Warner & Swasey
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.