Granted Patent
Utility
US 5,101,700 · App. 07/384,599
Rotatable tool head
Inventor:
Wolfgang Muth
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Jul 25, 1989
Inventor
Wolfgang Muth
Assignee (at issue)
GTE Valenite Corporation
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.