Granted Patent
Utility
US 4,958,438 · App. 07/332,077
Rotary table for a coordinate measuring machine and method of determining the axis of table rotation
Inventor:
Thomas L. Hemmelgarn
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Mar 30, 1989
Inventor
Thomas L. Hemmelgarn
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.