Granted Patent
Utility
US 4,297,927 · App. 06/127,800
Sheet metal positioning and gripping apparatus and method
Inventor:
Naoki Kuroda
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Mar 6, 1980
Inventor
Naoki Kuroda
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.